You filed a Maryland car accident claim and expected the insurance company to handle it normally. Instead, you received notice that your claim was sent to a Special Investigation Unit or SIU. An SIU referral does not automatically mean the insurer believes you committed fraud or that your claim will be denied. It means the insurer wants to take a closer look at the claim before proceeding.
Common reasons an insurer sends a claim to SIU
An SIU is part of an insurer’s process for reviewing potentially fraudulent claims. Maryland requires authorized insurers with policies or certificates of insurance in the state to maintain antifraud plans that include procedures for detecting insurance fraud and investigating suspicious claims.
An insurer may refer a claim to SIU when information raises questions that require further review. For example, the insurer may want to clarify:
- Whether the accident occurred as described in the claim
- Whether the reported injuries are consistent with the crash
- Whether information in the claim matches other available records
- Whether statements and documents submitted are accurate and complete
The insurer may request additional information or documentation as part of this review.
What should you do if your claim is under investigation?
Take the investigation seriously and be truthful. Keep your accident report, medical records, bills and other documents related to your claim. Before providing additional statements or documents, make sure you understand what the insurer is requesting. Then provide accurate and complete information.
If an SIU investigation raises questions you cannot resolve on your own, an attorney can review your claim and advise you about responding to the insurer.
An SIU referral is not a finding of wrongdoing. What matters at this stage is responding carefully and accurately while protecting your interests.

