Making the Referral to SIU

When to Escalate a Suspicious Claim and How to Build a Referral That Investigators Can Actually Use

Thursday, July 23rd, 2026 Claims Pages Staff The Claim That Doesn't Feel Right

Ask an SIU investigator about the referrals they receive and you will hear two complaints, delivered in the same weary tone. The first is the referral that says, in its entirety, "something seems off about this one," attached to a file with no timeline, no organized documents, and no indication of what the adjuster actually found. The second is the referral that arrives six months too late, after the claim has been paid, the evidence has scattered, and the statutory reporting windows have come and gone. Between those two failures sits the referral that works: timely, factual, organized, and specific. This article is about how to produce that one.

The referral to the Special Investigation Unit is the hinge of the entire fraud-handling process. Everything this series has covered so far, the calibrated instincts, the documentation review, the disciplined boundaries, converges here, at the moment the file passes from the adjuster to the investigator. Handled well, the handoff preserves everything the adjuster built. Handled badly, it wastes it. We will walk the process from the decision through the aftermath, in the order it actually happens.

Knowing When the Threshold Is Met

The first question is when to refer, and the honest answer begins with your own carrier's standard, because nearly every carrier has one and they differ. Some use indicator checklists with point thresholds. Some instruct referral upon any single indicator from a defined list. Some leave it to adjuster judgment with supervisory review. Learn your company's standard cold, because "I was following our referral criteria" is a sentence that protects you in every direction, from the regulator who asks why you referred and from the auditor who asks why you did not.

Beneath the formal standards, though, the working test is consistent across the industry, and it has two parts. First, multiple indicators, not one. A single red flag, standing alone, is almost always noise. Coverage that recently increased describes every household that just bought a home theater. No forced entry describes every burglary through an unlocked door. Fraud indicators earn their name in clusters, when independent facts begin agreeing with each other in a direction that innocence does not explain. Second, verification attempted and failed. A discrepancy you have not tried to resolve is not yet an indicator. The adjuster who calls the contractor, asks the claimant, checks the record, and watches the discrepancy survive contact with verification is holding something real. The adjuster who skips verification is holding a hunch, and SIU receives too many hunches already.

There is also a floor worth stating. You do not need proof of fraud to refer, and you should never wait for it. Proof is SIU's job, developed with tools you do not have and should not use. The referral standard is reasonable suspicion supported by articulable facts. If you can write one paragraph listing specific, verified discrepancies that point the same direction, you have met it. If you cannot write that paragraph, you have not, and the file needs more ordinary adjusting before it needs an investigator.

Timing, and Why Early Beats Airtight

Adjusters delay referrals for understandable reasons. They want to be sure. They worry about accusing an innocent person. They want to finish building the case first. Every one of those instincts, decent as they are, damages the outcome, and it is worth understanding why.

Referring is not accusing. A referral is an internal routing decision that sends a file to specialists for evaluation, and the majority of referred claims are investigated quietly, found legitimate, and paid, with the claimant never aware an investigation occurred. The moral weight adjusters assign to the referral belongs to the outcome, and the outcome is not the adjuster's decision. Meanwhile, the cost of waiting is concrete. Evidence degrades: the debris gets hauled away, the storage unit gets emptied, the witness moves. Statutory deadlines run, both the fair claims act clock on the claim decision and, in many states, mandatory fraud reporting windows that begin when suspicion arises, not when investigation concludes. And a payment made before the referral is a payment the carrier will likely never recover.

The rule of thumb: refer when the two-part test is met, and let SIU decide whether it is worth pursuing. An early referral that SIU declines costs one investigator twenty minutes. A late referral that would have mattered costs the whole case. The asymmetry should decide the close calls.

Building the Package

Now the referral itself. An investigator opening your referral knows nothing about the claim, and the quality of their first hour determines the trajectory of the investigation. Build the package so that hour is productive. Done properly, it contains six things, in roughly this order:

1. A one-page factual summary. The claim in five sentences: insured, policy, loss as reported, amount claimed, current status. Then the reason for referral as a numbered list of specific discrepancies. Not "the claimant seems evasive" but "the claimant stated on 4/12 that the television was purchased at retail in 2024; the retailer confirmed on 4/19 that the receipt number corresponds to a purchase returned for refund in the same week." Facts, dates, sources. Write it so a stranger could act on it, because a stranger will.
2. A complete chronology. Every dated event in the claim, from policy inception to the present, in one list. You built this during your documentation review. This is where it pays off twice.
3. The documents, organized and labeled. The policy, the loss report, statements, inventories, receipts, photographs, estimates, correspondence. Flag the specific documents your summary cites so the investigator can put a finger on each discrepancy without excavating the file.
4. Your verification record. Who you called, when, what they said, what you requested and what arrived. This tells SIU what has already been checked, which prevents duplicated work and, just as importantly, shows that the innocent explanations were tested and failed.
5. The claim's procedural posture. What deadlines are running, what payments are pending, what the claimant has been told, what remains undone on the adjusting side. The investigation has to coexist with a live claim, and the investigator needs to know the shape of it.
6. What you did not do. If there are avenues you deliberately left alone because they belonged to SIU, say so. An investigator who knows the employer was never contacted can make that contact through proper channels, cleanly.

Two cautions about the writing itself. First, keep conclusions out of it. The words "fraud," "liar," "staged," and their relatives do not belong in a referral, both because they are conclusions you cannot support and because the referral is discoverable. In litigation, your summary will be read aloud to a jury by an attorney selecting the least flattering sentence. Write every line as if that is its destiny, because it might be. Second, keep the referral out of the claim notes. Note that the file was referred per company guidelines, and nothing more. The analysis lives in the referral, through whatever privileged channel your carrier's procedure provides.

After the Handoff

The referral is submitted. Here is what changes, and what does not, and this is the part of the process adjusters most often get wrong.

The claim does not stop. Unless and until SIU or coverage counsel instructs otherwise, the claim continues on its ordinary track: communications answered, inspections completed, deadlines met. The claimant is entitled to the same handling as before the referral, and any change in tone or tempo they can detect is both a bad faith exposure and a tip-off. You will feel a pull toward stalling, waiting for the investigation before taking the next claim step. Resist it, and when the two tracks genuinely conflict, when a payment is coming due that the investigation makes questionable, raise it with SIU and your supervisor explicitly rather than resolving it by quiet delay.

Your role narrows but does not end. SIU will likely come back to you, because you know the file and the claimant better than anyone. Answer quickly, keep documenting your ordinary claim activity, and forward anything new that bears on the investigation. What you must not do is continue investigating on your own, re-interview the claimant about the discrepancies, or share the existence of the investigation with anyone outside the need-to-know circle, including the agent, the contractor, and most especially the claimant. The previous article in this series mapped those boundaries. After a referral, they tighten.

Expect silence, and do not take it personally. Investigations disclose on a need-to-know basis, and the referring adjuster often learns the outcome only when the file comes back with instructions: pay it, it cleared. That outcome, by the way, is the most common one, and it should be received as good news. The system worked, the honest claimant gets paid, and the referral did exactly what referrals are for.

The Relationship Behind the Referral

One factor improves referrals more than any checklist, and it rarely appears in the procedures manual: knowing your SIU as people rather than as an inbox. Adjusters who have sat with an investigator for twenty minutes, asked what makes a referral useful, and heard the war stories about the ones that were not, write noticeably better referrals afterward. The standard stops being an abstraction and becomes a colleague's actual working day.

The relationship also opens the door to the informal consult, which is the most underused tool in the entire process. Most SIU teams would far rather take a five-minute call about a file that is bothering you than receive either a premature referral or none at all. The consult costs nothing, commits nobody, and frequently resolves the question on the spot: refer it, or here is the verification step to run first, or that pattern is a known scheme in your territory and here is what to look for. Adjusters sometimes avoid these calls out of fear of looking naive. The fear runs exactly backward. The adjuster who calls to ask is the one investigators learn to trust, because the willingness to ask is the same trait that produces careful files.

Finally, know the statutory layer that sits behind your carrier's process. Many states require insurers to report suspected fraud to the state fraud bureau within a defined window, and many provide civil immunity for good-faith reports, protection that exists precisely so that reasonable suspicion can be reported without fear. You will probably never file those reports yourself; that is SIU's job. But knowing the requirement exists explains the urgency in your carrier's referral timelines, and it is one more reason the close calls should resolve toward referring early rather than waiting for certainty that is not yours to establish.

The Mistakes That Recur

Every SIU manager keeps the same private list of referral failures. It is short, and now it is yours: referring on a single unverified flag, and referring on accumulated verified flags six months late. Writing conclusions instead of facts. Sending the pile instead of the package, thirty unlabeled attachments and a note that says "see file." Tipping the claimant through a changed tone. Freezing the claim while the investigation runs. And the quietest one, never learning the carrier's referral standard in the first place, so that every decision is improvised under pressure.

None of these mistakes comes from bad intent. They come from treating the referral as an afterthought, a form to be filed once the interesting part is over. It is the opposite. The referral is the adjuster's work product in its final, most consequential form, the one document where everything you noticed, checked, and documented either becomes usable or does not. The adjusters SIU trusts are the ones whose referrals arrive early, read clean, and hold up. Be one of them, and the rest of the fraud-handling system works the way it was designed to.

One piece of the discipline remains, and it is the one that makes all the others defensible: how to keep the honest majority of claimants protected while any of this is happening.