How can a claims adjuster identify and investigate a potentially fraudulent insurance claim?

Identifying and investigating potentially fraudulent insurance claims requires a balance of acute observation, policy knowledge, and methodical fact-checking. Adjusters look for behavioral, chronological, and physical "red flags" that deviate from standard patterns of loss.

Phase 1: Identifying the Red Flags

Fraud indicators generally fall into three primary buckets:

• Timeline and Policy Red Flags:
  • Suspicious Timing: The loss occurs very shortly after a policy is purchased, right before a policy is set to cancel for non-payment, or immediately following an increase in coverage limits.
  • Delayed Reporting: A significant, unexplained delay in reporting the incident to the insurer, especially when high severity is claimed.
• Behavioral and Statement Red Flags:
  • Evolving Stories: The claimant's narrative changes, details shift during retellings, or the timeline contradicts earlier recorded statements.
  • Aggressive Pushing: Overly eager demands for a rapid, quick-cash settlement without wanting to provide comprehensive documentation.
  • Too Much/Too Little Detail: Evasiveness around direct questions paired with unprompted, overly rehearsed, or hyper-specific details about irrelevant matters.
• Physical and Documentation Red Flags:
  • Disproportionate Damage: Physical damage that does not match the mechanism of the accident or incident description (e.g., severe structural damage from a minor impact).
  • Altered Documents: Receipts, invoices, or medical bills that look freshly printed, pixelated, photocopied awkwardly, or mathematically inconsistent.
  • Exclusive Subjective Injuries: Soft-tissue injuries or pain complaints with no objective medical diagnostic findings, especially with multiple claimants in a low-impact collision.

Phase 2: Investigating the Claim

Once red flags trigger suspicion, the adjuster must transition from routine processing to a formal fact-finding protocol without violating the claimant's good-faith rights.

- Ask open-ended questions about the timeline, sequence of events, and specific particulars.
- Compare the audio/video recorded statements meticulously against initial FNOL (First Notice of Loss) notes and police/fire reports.[](https://google.com/goto?url=CAESZwHrOzAVCa5ca4-pq7b1f6JUxN1bObcAqubgZ3kmOpHejkrv7unw3KljclNgk2ohvDwx_TphbtX2FgFaXKZn_zufnU3UYcLo_AESfvtgnSLHPTRx2f3zalDFhHq2T2-SuXK8cN_hJRU) [[1]](https://google.com/goto?url=CAESZwHrOzAVCa5ca4-pq7b1f6JUxN1bObcAqubgZ3kmOpHejkrv7unw3KljclNgk2ohvDwx_TphbtX2FgFaXKZn_zufnU3UYcLo_AESfvtgnSLHPTRx2f3zalDFhHq2T2-SuXK8cN_hJRU)[[2]](https://google.com/goto?url=CAESawHrOzAVuwWbzTTCFAXUDkjh_6pfaTFLJ2cY7qlth6tqOjHNMA498EB0ramItOM9mMVuUHpuR5qrqkHAFQ116gzTdhTR2HqnoULAWR2FtA0kYRo72wbZZHym7YDtnKc5dCd2EZOX2f4Gb6nw)

- Run searches via the ISO ClaimSearch or similar industry clearinghouses to check if the claimant, vehicle, or property has a history of prior, frequent, or suspiciously similar losses.[](https://google.com/goto?url=CAESjwEB6zswFQTwmcQ1bFO6SHlzD1Sgb2lKjbQAxHgJe048S9KDgTMASnvCMxZu8waRSLBMkAeSAo0FXqmtlqnMPpDMBLrui6g1rGJRstB8a2XSm3LsFOyzDfRUgH8Wqk81QZ470RnBG2FfiRZm67fUmHRIrnvL576VndXJrF6sPbAqoTv5wUUsKmq7z7Vc4iuWvg) [[1]](https://google.com/goto?url=CAESjwEB6zswFQTwmcQ1bFO6SHlzD1Sgb2lKjbQAxHgJe048S9KDgTMASnvCMxZu8waRSLBMkAeSAo0FXqmtlqnMPpDMBLrui6g1rGJRstB8a2XSm3LsFOyzDfRUgH8Wqk81QZ470RnBG2FfiRZm67fUmHRIrnvL576VndXJrF6sPbAqoTv5wUUsKmq7z7Vc4iuWvg)

- Deploy forensic experts, accident reconstructionists, or fire investigators if physical validation is ambiguous.
- Inspect digital metadata on photos submitted by the claimant (date stamps, location data, camera IDs).

- Contact third-party vendors, repair shops, and medical providers directly to verify invoice authenticity and ensure billing codes haven't been inflated or up-coded.[](https://google.com/goto?url=CAESZwHrOzAVCa5ca4-pq7b1f6JUxN1bObcAqubgZ3kmOpHejkrv7unw3KljclNgk2ohvDwx_TphbtX2FgFaXKZn_zufnU3UYcLo_AESfvtgnSLHPTRx2f3zalDFhHq2T2-SuXK8cN_hJRU) [[1]](https://google.com/goto?url=CAESZwHrOzAVCa5ca4-pq7b1f6JUxN1bObcAqubgZ3kmOpHejkrv7unw3KljclNgk2ohvDwx_TphbtX2FgFaXKZn_zufnU3UYcLo_AESfvtgnSLHPTRx2f3zalDFhHq2T2-SuXK8cN_hJRU)

- If objective inconsistencies accumulate, formalize the observations in writing and transfer the file to the insurer’s dedicated SIU team for surveillance, background checks, or an **Examination Under Oath (EUO)**.[](https://google.com/goto?url=CAESYgHrOzAV29XpdNX-0AmP6Sk2ApH8Vf0wGiZ_lvSFaP6jNF-jZDaMRdiCJPGfbYbU-6Ll1aXsSXLKCezaaE1vhx7jaIHM5DgjByNQ6SIIQ4DwvV3wJsjyR4wF1CDNlJs43gul) [[1]](https://google.com/goto?url=CAESYgHrOzAV29XpdNX-0AmP6Sk2ApH8Vf0wGiZ_lvSFaP6jNF-jZDaMRdiCJPGfbYbU-6Ll1aXsSXLKCezaaE1vhx7jaIHM5DgjByNQ6SIIQ4DwvV3wJsjyR4wF1CDNlJs43gul)[[2]](https://google.com/goto?url=CAESawHrOzAVuwWbzTTCFAXUDkjh_6pfaTFLJ2cY7qlth6tqOjHNMA498EB0ramItOM9mMVuUHpuR5qrqkHAFQ116gzTdhTR2HqnoULAWR2FtA0kYRo72wbZZHym7YDtnKc5dCd2EZOX2f4Gb6nw)[[3]](https://google.com/goto?url=CAEScQHrOzAVrLyef3iuVZM1JFcKC2aWxkTKEe71y8m_elpmmv1nmnJ9cOIonY91X8PTALVb0SyKmNhLsFcUviwXTCchvTaJK2ZuFkFj1HOaJGwck0r1Dzd9rilVkLp2G5A9dOptGM1HLD64SUywssRVMWqk)

Would you like to explore common fraud indicators specific to a particular line of insurance (such as auto, property, or workers' compensation), or do you need details on the legal boundaries of an Examination Under Oath (EUO)?

A claims adjuster identifies and investigates a potentially fraudulent insurance claim by looking for objective indicators of fraud, documenting inconsistencies, verifying facts, and escalating appropriate cases for specialized investigation. A red flag is not proof of fraud by itself—it is a reason to conduct additional review.

1. Identify potential fraud indicators (“red flags”)

Common warning signs include:

• Inconsistent statements

• The claimant’s story changes between the initial report, interviews, police reports, or supporting documents.

• The timeline, location, cause of loss, or extent of damage does not make sense.

• Suspicious timing

• A large claim occurs shortly after a policy is purchased, coverage is increased, or a deductible is changed.

• Unusual claim history

• Multiple prior claims, repeated similar losses, or patterns involving related parties may warrant review.

• Questionable documentation

• Altered-looking receipts, missing records, inflated estimates, duplicate invoices, or documents that cannot be independently verified.

• Exaggerated damages or losses

• The claimed loss appears inconsistent with physical evidence, repair costs, market values, or the circumstances of the event.

• Behavioral indicators

• Pressure for an immediate settlement, reluctance to provide information, or attempts to limit investigation access.

2. Review the claim file thoroughly

The adjuster should:

• Confirm policy coverage, effective dates, exclusions, and limits.
• Compare the reported loss against the policy terms.
• Review the first notice of loss (FNOL) information.
• Examine prior claims, loss history, and available internal claim data.
• Document every inconsistency or unusual fact rather than relying on impressions.

3. Verify the facts independently

A fraud investigation relies on evidence, not suspicion. Verification steps may include:

• Inspecting the loss site.
• Taking photographs or measurements.
• Reviewing repair estimates.
• Obtaining police, fire, medical, or official reports when applicable.
• Contacting witnesses.
• Confirming records with third parties such as repair shops, contractors, employers, or providers.

4. Conduct interviews strategically

Useful interviews may include:

• The insured or claimant.
• Witnesses.
• Service providers.
• Other involved parties.

A recorded statement or detailed interview can help establish:

• What happened.
• When and where it happened.
• Who was involved.
• Whether the facts match the available evidence.

5. Use fraud detection tools and databases

Many insurers use:

• Rules-based fraud checklists.
• Predictive analytics or fraud scoring.
• Cross-claim comparisons.
• Specialized databases for prior claims patterns.

These tools help prioritize claims for review but do not replace human investigation.

6. Refer appropriate cases to a Special Investigation Unit (SIU)

If indicators remain after initial review, the adjuster typically refers the claim to an SIU or fraud investigator. The referral should include:

• Specific facts that raised concerns.
• Documents supporting the concern.
• Names of involved parties.
• Estimated financial impact.
• Outstanding investigative questions.

7. Maintain a fair and well-documented process

A good investigation should:

• Avoid assuming fraud based on a single unusual fact.
• Continue evaluating evidence that supports and contradicts the suspicion.
• Separate legitimate coverage disputes from intentional misrepresentation.
• Keep a clear record of decisions and investigative steps.

In practice, the adjuster’s goal is not simply to find fraud—it is to determine whether the claim facts are accurate, supported by evidence, and consistent with the policy.

A claims adjuster should treat a suspected fraudulent claim as an investigative lead, not as proof of fraud. The goal is to establish the facts objectively, preserve evidence, and refer the matter to the insurer’s Special Investigative Unit (SIU) when appropriate. California guidance, for example, expressly notes that red flags alone do not establish fraud.

1. Identify potential red flags

Look for inconsistencies, unusual circumstances, or patterns such as:

• The loss occurring shortly after a policy was purchased or coverage was materially changed.
• Conflicting accounts from the claimant, witnesses, police, contractors, medical providers, or other parties.
• Documentation that appears altered, fabricated, incomplete, or inconsistent.
• An unusually inflated estimate, duplicate invoices, or charges that don't fit the reported loss.
• A suspicious history of similar claims or losses.
• Evidence that the claimed damage could have existed before the reported event.
• Unusual policy activity surrounding the loss.
• A claimant's unexplained reluctance to provide relevant information.

Regulators emphasize that red flags can include claim circumstances, behavioral/history patterns, discrepancies in statements or documents, and altered or falsified records.

Importantly, a single red flag doesn't mean the claimant is committing fraud. It should prompt additional fact-finding.

2. Compare the claim against independent evidence

Build a timeline and test the claimant's account against objective information:

• Policy inception, endorsements, prior claims, and payment history.
• Photos, videos, inspection reports, estimates, invoices, receipts, and repair records.
• Police, fire, weather, accident, or other official reports as applicable.
• Statements from witnesses and relevant third parties.
• Prior-loss information and appropriate industry databases.
• Information from vendors, repair facilities, medical providers, contractors, or other relevant sources.

For example, if a claimant says a particular item was destroyed in a fire, the adjuster should establish that the item existed before the fire, determine its ownership and value, and verify that the reported circumstances are consistent with the physical and documentary evidence.

California's SIU procedures specifically contemplate claim-file analysis, witness interviews, appropriate industry databases, and preservation of investigative evidence.

3. Document discrepancies carefully

Instead of writing “the claimant is lying,” document the underlying facts:

The claimant stated X on June 3. The repair invoice dated May 15 identifies Y. The witness statement describes Z. That distinction is important. The investigator should allow the evidence to establish whether the discrepancy has an innocent explanation or represents a material misrepresentation.

Keep an organized investigative record containing:

• What triggered the concern.
• Each relevant fact discovered.
• Sources of the information.
• Interviews and statements.
• Documents and photographs.
• Follow-up questions.
• Explanations offered by the claimant.
• The investigator's analysis and conclusions.

NAIC investigative guidance emphasizes documenting the scope, investigation, interviews, and documentary evidence.

4. Interview rather than simply accuse

Interview the claimant and relevant witnesses using neutral, open-ended questions first. Then ask targeted follow-ups about discrepancies.

For example:

• “Walk me through what happened from the beginning.”
• “When did you first notice the damage?”
• “Who else was present?”
• “When did you purchase the item?”
• “Do you have documentation showing the purchase?”
• “Can you explain the difference between your statement and this invoice?”

Give the claimant a meaningful opportunity to explain apparent inconsistencies. An innocent explanation may resolve what initially looked suspicious.

5. Refer the claim to SIU when warranted

If the facts create a reasonable basis for suspicion, follow the insurer's antifraud procedures and refer the matter to the Special Investigative Unit (SIU) rather than conducting an improvised investigation outside the adjuster's authority.

NAIC guidance contemplates written referral criteria and procedures for moving suspicious claims from claims personnel to the SIU.

Depending on the type of claim, SIU may use specialized investigators, data analysis, industry databases, or cooperation with organizations such as the National Insurance Crime Bureau and law enforcement.

6. Preserve evidence and maintain chain of custody

Don't alter original documents or overwrite original photographs/files. Preserve relevant materials in accordance with company procedures, including:

• Original documents and metadata where appropriate.
• Photographs and video.
• Statements and interview notes.
• Estimates and invoices.
• Relevant correspondence.
• Inspection findings.
• Database-search results.
• Other evidence supporting or contradicting the suspicion.

7. Apply the law and policy fairly

Fraud investigations have legal and regulatory consequences, so adjusters should follow applicable state law, policy provisions, privacy requirements, evidentiary rules, and the insurer's SIU procedures. Reporting obligations vary by jurisdiction. For example, California requires insurers to maintain SIUs and establishes procedures for identifying and referring suspected fraud.

The adjuster should also avoid allowing stereotypes or assumptions about a claimant to drive the investigation. The investigation should be based on articulable facts and rational inferences, rather than simply an impression that someone “seems suspicious.”

A useful investigation framework

Red flag → Verify → Interview → Corroborate → Document → Refer → Conclude

The central principle is: investigate the inconsistency, not the person. A strong fraud investigation establishes what happened through independent evidence and gives the claimant a fair opportunity to explain the evidence before reaching a conclusion.

Insurance fraud costs billions annually, making the detection and investigation of suspicious claims a core responsibility for claims adjusters. Adjusters look for specific behavioral, situational, and physical indicators before diving into formal investigative steps.

Red Flags and Indicators of Fraud

• The "Too Perfect" Timing: Policies purchased or increased just days before a loss, or a policy canceled/lapsed immediately after an incident.
• Suspicious Behavior: The claimant is overly eager, pushing for a quick cash settlement, aggressive, or can't recall basic details about their own loss.
• Vague or Inconsistent Details: Discrepancies between the police report, the claimant's initial statement, and the physical damage or medical records.
• Lack of Documentation: Missing receipts, original packaging, serial numbers, or ownership proofs for high-value items claimed as stolen or destroyed.
• Staged or Pre-existing Damage: Rust inside fresh impact zones, paint transfer that doesn't match the alleged object, or wear patterns inconsistent with the sudden event.
• The "Too Convenient" Loss: High-value items (like jewelry or electronics) going missing right before an upgrade, move, or business bankruptcy.

Investigative Steps for Adjusters

1. First Notice of Loss (FNOL) Screening: Scrutinize the initial intake details, checking for data anomalies like a suspicious phone number, address, or prior claims history across industry databases like ISO (Insurance Services Office).
2. Detailed and Recorded Interviews: Conduct thorough recorded interviews, asking open-ended questions and re-asking key timeline questions out of order to catch inconsistencies.
3. Physical Inspection and Evidence Collection: Inspect the scene or property personally or via specialized experts (forensic engineers, fire investigators, or collision reconstructionists). Take high-resolution photos and preserve physical evidence.
4. Document and Record Verification: Request and cross-examine official records, including police reports, medical bills, tax returns, employment verification, and receipts.
5. Social Media and Public Record Scrape: Review public social media profiles to check if the claimant is posting items they claim were stolen, or displaying physical capabilities they claim were lost in an injury.
6. Special Investigation Unit (SIU) Referral: If red flags accumulate and point toward intentional misrepresentation, formally refer the file to the company’s internal SIU or legal counsel for specialized surveillance, examinations under oath (EUO), or law enforcement handoff.

Would you like me to focus on a specific type of insurance fraud, such as auto accidents, property/homeowners , or workers' compensation?

A claims adjuster should treat a suspected fraudulent claim as an investigative lead, not a conclusion. A single red flag does not establish fraud; the goal is to objectively determine whether the facts support the claim and whether there was an intentional material misrepresentation.

1. Identify potential red flags

Common indicators include:

• Inconsistent statements between the claimant, witnesses, police reports, medical records, estimates, or other documents.
• Unusual timing, such as a loss occurring soon after a policy is purchased or coverage changes.
• Inflated or questionable damages, including estimates that don't match the reported event.
• Altered, missing, or suspicious documentation, invoices, receipts, photographs, medical records, or reports.
• Prior claim patterns or other history suggesting repeated or similar losses.
• Unusual behavior, such as evasiveness or reluctance to provide relevant information.
• Circumstances that don't logically fit the reported cause, date, location, or extent of loss.

NAIC guidance specifically identifies altered documents, prior history, discrepancies in statements, unusual policy activity, and claim-history patterns as examples of potential indicators.

2. Compare the claim against independent evidence

Don't simply accept or reject the claimant's version. Test it against available evidence:

1. Review the complete claim and underwriting files.
2. Establish the timeline of events.
3. Compare statements from the claimant and witnesses.
4. Examine photographs, videos, repair estimates, invoices, medical documentation, police reports, and other relevant records.
5. Check appropriate industry databases and prior-claim information.
6. Verify ownership, loss location, dates, and other material facts.
7. Preserve original documents and other evidence.

Regulatory guidance for SIU investigations specifically calls for claim-file analysis, witness identification/interviews, appropriate database searches, evidence preservation, and a written investigation summary.

3. Interview strategically

Use open-ended questions first—“Tell me what happened from the beginning”—and then reconcile the account with objective evidence.

If there are discrepancies, give the claimant an opportunity to explain them. A legitimate explanation may resolve what initially appeared suspicious.

Document what was said, when it was said, by whom, and what evidence corroborates or contradicts it.

4. Refer appropriately to the SIU

If the evidence warrants additional investigation, follow the insurer's anti-fraud procedures and refer the matter to the Special Investigations Unit (SIU). Insurers commonly use adjuster judgment, predetermined red-flag criteria, and increasingly analytical/fraud-scoring systems to identify claims for SIU review.

The adjuster's role isn't necessarily to prove a crime. It's to recognize the indicators, document the facts, preserve evidence, and escalate appropriately.

5. Maintain objectivity and fair claim handling

This is critical: a suspicious claim isn't automatically a fraudulent claim. Investigators should actively consider evidence that supports the claimant as well as evidence that casts doubt on the claim. California's SIU guidance, for example, expressly states that red flags are leads requiring further investigation rather than proof of fraud.

The investigation should therefore be:

• Evidence-based rather than assumption-based
• Consistent with the policy and applicable law
• Properly documented
• Respectful of privacy and other legal restrictions
• Conducted without unnecessarily delaying legitimate claim benefits

6. Build a defensible investigation file

A good file should allow another reviewer to understand why the claim became suspicious, what was investigated, what evidence was obtained, and why the investigator reached the ultimate conclusion.

A useful structure is:

Red flag → hypothesis → evidence sought → evidence obtained → claimant/witness explanation → corroboration/contradiction → finding → recommended action.

If the evidence ultimately supports intentional fraud, the SIU/carrier can follow applicable procedures for denial, recovery, regulatory reporting, or referral to law enforcement. NAIC notes that most states have specialized fraud bureaus that investigate suspected insurance fraud.

Bottom line: the strongest investigation is not one that merely finds inconsistencies; it establishes, through independent evidence, whether those inconsistencies have a legitimate explanation or demonstrate an intentional and material misrepresentation.

If you're interested in Florida specifically, I can also lay out the Florida adjuster's/SIU investigation process, including relevant Florida statutes, documentation requirements, EUOs, and when a claim should be referred to SIU.

Identifying and investigating a potentially fraudulent insurance claim requires a keen eye for behavioral cues, documentary inconsistencies, and factual anomalies . Claims adjusters follow a structured approach to spot red flags and build a case without violating good faith or privacy laws.

• Behavioral Red Flags : Look out for claimants who are overly anxious, aggressive, or unusually familiar. Hesitation when answering basic timeline questions, a lack of documentation, or demanding an immediate cash payout without negotiation are classic warning signs.
• Document and Paperwork Analysis : Scrutinize receipts, invoices, and estimates for signs of tampering, identical fonts across different vendor invoices, missing tax IDs, or rounded-up numbers that look fabricated. Cross-reference dates of purchase with the stated date of loss.
• Timing and Circumstantial Anomalies : Check if the policy was purchased or upgraded shortly before the loss occurred (e.g., adding high-value coverage weeks before a "theft"). Delays in reporting the incident or a loss that happens right after a major life event or financial stressor should raise eyebrows.
• Social Media and Digital Footprint : Review publicly available digital information to see if a claimed stolen item appears in recent photos, or if an allegedly injured claimant is participating in strenuous physical activities.
• Data Analytics and Industry Databases : Run the claim through industry-wide reporting clearinghouses (like the ISO ClaimSearch database) to check if the claimant, vehicle, or property has a history of prior losses or multi-carrier claims.
• Formal SIU Referral : If initial investigative steps confirm a high probability of fraud, compile the evidence and refer the file to the company’s Special Investigation Unit (SIU) or legal counsel for formal examination under oath (EUO) or external investigation.

Would you like me to detail specific red flags for a particular line of insurance (such as auto, property, or workers' compensation), or focus on the legal limits and regulations surrounding claim denials?

A claims adjuster should treat potential fraud as an investigative question, not a conclusion. A suspicious fact is a reason to verify the claim—not, by itself, a reason to deny it. The National Insurance Crime Bureau (NICB) specifically cautions that fraud indicators should trigger additional independent investigation rather than automatically justify denial or reduced payment.

1. Start with the claim and policy facts

Compare the reported loss against:

• Policy terms, limits, exclusions, deductibles, and effective dates
• The date, time, location, and circumstances of the loss
• The claimant's description of what happened
• Prior claims and relevant underwriting information
• Receipts, invoices, estimates, photographs, police/fire reports, medical records, or other supporting documentation

The adjuster should establish a clear timeline and identify contradictions or unexplained gaps.

2. Look for red flags

Common indicators include:

• The loss occurs shortly after coverage begins or is substantially increased.
• The claimant's story changes materially.
• Documents, receipts, or records appear altered, inconsistent, or unverifiable.
• Claimed property cannot be substantiated as having existed or been owned.
• Damage doesn't match the reported cause of loss.
• The claimant is unusually evasive about providing information.
• Multiple claims involve the same people, vehicles, providers, addresses, contractors, or other entities.
• The claim contains unusual billing or pricing patterns.
• There are indications of staged accidents, inflated losses, fabricated injuries, or intentional damage.

NICB describes a questionable claim as one containing fraud indicators or other definable inconsistencies, including unusual behavior, missing documentation, or evasiveness.

3. Verify rather than assume

For each red flag, seek an independent source of evidence.

For example:

• Verify invoices with the purported vendor.
• Compare photographs with the reported date and circumstances.
• Obtain relevant police, fire, repair, or medical records through proper authorization and procedures.
• Confirm ownership, purchase, delivery, or repair history.
• Compare the claimant's account with witness statements.
• Examine vehicle identification and prior loss information where appropriate.
• Check for related claims or suspicious patterns through authorized industry databases.

For vehicle claims, NICB notes that investigations may involve determining whether an accident occurred as reported, whether it was staged or caused, whether supporting documents are legitimate, and whether material misrepresentations were made.

4. Interview the claimant and witnesses

Use open-ended questions first:

"Tell me exactly what happened from the beginning."

Then clarify specifics such as:

• Who was present?
• When and where did each event occur?
• What did you observe personally?
• When did you first notice the damage?
• Who purchased or possessed the claimed property?
• What documents or records would establish ownership or value?

Document the answers carefully and compare them with the existing evidence. Inconsistencies should be investigated in context; an innocent mistake isn't necessarily fraud.

5. Refer appropriate cases to the SIU

If the initial investigation produces substantial concerns, follow the insurer's Special Investigative Unit (SIU) referral procedures. SIUs are specifically trained to investigate suspicious claims and can coordinate with NICB and law enforcement when appropriate.

The adjuster should preserve the claim file, chronology, documents, photographs, communications, interview notes, and the specific facts supporting the referral.

6. Consider organized or cross-claim fraud

Don't look only at the individual claim. Patterns across claims can be much more revealing—for example, repeated involvement of the same medical provider, contractor, attorney, vehicle, address, or group of claimants.

NICB conducts multi-claim and multi-carrier investigations and works with insurers and law enforcement on organized fraud schemes.

7. Follow legal and regulatory requirements

The adjuster should follow the insurer's investigation procedures and the law of the applicable state, particularly regarding:

• Fraud referrals and mandatory reporting
• Privacy and authorization requirements
• Recorded statements
• Surveillance
• Access to medical or financial information
• Contact with witnesses
• Preservation of evidence
• Claim-handling deadlines and unfair-claims practices rules

This is important because an investigation must not become an excuse for unnecessarily delaying a legitimate claim.

8. Reach a conclusion based on the evidence

At the end, distinguish among:

Legitimate claim: Evidence supports the reported loss.

Questionable claim requiring further investigation: Important facts remain unresolved.

Unsupported or inaccurate claim: Some portion isn't substantiated, but there isn't necessarily evidence of intentional deception.

Potential fraud: Evidence supports intentional deception, fabrication, concealment, staging, or another fraudulent scheme.

The distinction between "I can't substantiate this" and "the claimant intentionally committed fraud" is critical.

A useful investigative principle from NICB is that every claim should be examined case-by-case and that investigators should pursue evidence supporting both the legitimacy of the claim and the suspected fraudulent activity.

In short:
Spot the anomaly → document it → form a neutral hypothesis → independently verify it → interview relevant people → involve SIU when warranted → preserve evidence → comply with state law → make the claim decision based on the total evidence.

If you're asking from the perspective of an adjuster, I can also give you a practical fraud-investigation checklist and sample interview questions for property, auto, workers' comp, or bodily-injury claims.

Claims adjusters use a mix of behavioral analysis, data forensics, and investigative techniques to spot and look into red flags. Here is how they approach the process:

• Initial Red Flag Detection , looking for suspicious patterns in the timeline, such as a policy purchased right before a loss, a delayed reporting of the incident, or an unusually eager claimant pushing for a quick payout without documentation.
• Document and Data Verification , cross-checking details like receipts, medical bills, and repair estimates against industry databases, public records, and prior claim histories (using services like the ISO ClaimSearch) to catch altered documents or duplicate submissions.
• Behavioral and Interview Analysis , observing the claimant's demeanor during statements or recorded interviews for inconsistencies, defensiveness, overly rehearsed facts, or a lack of specific details about the loss.
• Physical Evidence and Scene Inspection , examining the damage firsthand or working with forensic experts (such as accident reconstructionists or fire investigators) to determine if the physical evidence matches the claimant's story (e.g., burn patterns, impact angles, or wear-and-tear disguised as sudden damage).
• Social Media and Digital Footprint Tracking , reviewing public social media profiles, digital photos, or metadata to see if a claimed stolen item appears in the background of a recent photo, or if an allegedly injured claimant is engaging in heavy physical activity.
• Surveillance and Special Investigation Units (SIU) , deploying professional investigators or referring the file to an internal SIU when high-value or deeply suspicious indicators persist and require covert observation or formal legal subpoenas.

If you'd like, I can detail:

• Specific red flags for auto vs. property vs. workers' compensation claims
• The legal steps for denying a claim or referring it to state fraud bureaus

A claims adjuster should treat fraud detection as a fact-finding process, not an assumption of guilt. A suspicious indicator is a reason to investigate further; by itself, it does not establish fraud. NICB specifically cautions that fraud indicators are not proof of fraud.

1. Start with the claim and policy

• Confirm the policy was active when the loss occurred.
• Review coverage, exclusions, deductibles, limits, and prior claims.
• Establish a precise timeline: policy inception, reported loss, discovery of damage, notice to insurer, repairs, purchases, and other relevant events.
• Compare the claimant's current statement with the original application and previous claim information.

2. Look for meaningful red flags

Examples can include:

• Damage or circumstances inconsistent with the reported event.
• Significant discrepancies between statements, documents, photographs, or physical evidence.
• A loss occurring shortly after coverage was obtained or substantially increased.
• Unusual urgency to settle or resistance to reasonable investigation.
• Inflated quantities, duplicate invoices, questionable receipts, or unsupported expenses.
• Similar claims involving the same claimant, vehicle, property, provider, contractor, or other participants.
• Evidence suggesting a staged accident, fabricated loss, or deliberate exaggeration.

These indicators should prompt additional questions rather than an automatic denial. NAIC distinguishes hard fraud—deliberately creating a loss—from soft fraud, such as exaggerating an otherwise legitimate claim.

3. Verify independently

Don't rely solely on the claimant's account. Depending on the claim, an adjuster might:

• Inspect the property or vehicle and photograph/document the condition.
• Obtain repair estimates, invoices, receipts, medical records, police reports, or other relevant records through proper authorization and legal procedures.
• Interview witnesses and involved parties.
• Compare dates, locations, damage patterns, and other objective evidence.
• Check applicable claim-history databases and internal records for related claims.
• For auto claims, verify VIN and vehicle-history information where appropriate. NICB provides investigative assistance involving vehicle claims history, stolen/burned vehicles, and suspected insurance-fraud subjects.

4. Compare the evidence against the allegation

A useful approach is to build an evidence matrix:

The goal is to distinguish an innocent discrepancy, negligence, exaggeration, and intentional deception.

5. Preserve the investigation

Document:

• Who provided each piece of information and when.
• Statements and material changes in those statements.
• Photographs, reports, estimates, invoices, correspondence, and other evidence.
• How information was obtained.
• The reasoning behind investigative decisions.

Maintain the claim file so another investigator could reconstruct the investigation from the record.

6. Refer appropriate claims to the SIU

If the facts establish sufficient concern under the insurer's procedures, refer the matter to the Special Investigations Unit (SIU) rather than trying to conduct an informal criminal investigation as an ordinary adjuster. SIUs consist of specially trained personnel who investigate suspicious claims and may work with NICB and law enforcement.

A good referral should contain the specific facts and supporting documentation, not simply "claim appears fraudulent." NICB emphasizes that complete supporting information and documentation make questionable-claim referrals more useful.

7. Coordinate with regulators or law enforcement when appropriate

Potential organized or serious fraud may warrant referral to the state insurance fraud bureau, NICB, or law enforcement, depending on the circumstances and applicable state law/company procedures. NICB describes its role as supporting multi-claim and multi-carrier investigations alongside insurers and law enforcement.

8. Keep the claims decision separate from the suspicion

Most importantly, don't deny a legitimate claim merely because it has red flags. The investigation should determine whether the policy requirements are met and whether there is reliable evidence of intentional deception. State claims-handling requirements also apply, so the adjuster should follow the applicable state law, policy language, insurer procedures, and applicable privacy/evidence rules.

In practice, the strongest investigation follows this sequence:

Red flag → verify facts → document evidence → test competing explanations → SIU referral when warranted → regulatory/law-enforcement referral when appropriate → make the coverage decision based on the evidence and applicable law.

To identify and investigate a potentially fraudulent insurance claim, a claims adjuster looks for behavioral and circumstantial red flags , utilizes cross-industry databases , and conducts thorough evidentiary reviews . Fraud costs billions annually, making early detection essential to avoid improper payouts.

Identifying Red Flags

Adjusters are trained to spot anomalies during the initial intake and evaluation. Common warning signs include:

• Suspicious Timelines: Claims filed immediately after a policy is purchased, coverage limits are increased, or a deductible is lowered.
• Inconsistent Statements: Vague details or conflicting descriptions of the incident provided by the claimant, witnesses, or police reports.
• Missing or Altered Documentation: Falsified receipts, template-looking medical bills, or digitally modified photos.
• History of Frequent Claims: A pattern of multiple, similar claims filed by the same individual or household across different carriers.
• Overly Convenient Circumstances: Losses occurring with no independent witnesses, late reporting of the incident, or a lack of physical evidence matching the narrative.

Investigation Techniques and Tools

When a claim triggers a fraud score or warning indicator, adjusters escalate their review through targeted investigative workflows:

• Database Cross-Checking: Utilizing industry repositories like ISO ClaimSearch to scan for overlapping historical claim patterns across various insurance lines.
• Digital & Social Media Footprint Analysis: Reviewing public check-ins, timestamps, and photos on platforms like Facebook or Instagram to verify if a claimant's online activity contradicts reported physical limitations or loss timelines.
• Medical and Provider Verification: Auditing medical records for inconsistencies or using independent medical examinations (IMEs) to confirm if the treatment aligns directly with the documented trauma.
• Surveillance and Field Checks: Conducting neighborhood canvassing or physical activity checks when high-value or highly suspicious payouts are at stake.
• Special Investigation Unit (SIU) Referral: Transitioning complex or high-probability fraud files to internal specialists or external law enforcement channels when clear intent to defraud is established.

If you're dealing with a specific type of claim—such as auto, property, or workers' compensation —let me know, and I can detail the exact red flags and databases most relevant to that scenario.