Workers Comp Investigators: What Are They Allowed to Do?

Workers' comp investigators are generally allowed to conduct public surveillance, review social media, take recorded statements, and verify medical records — all within legal boundaries set by state law. As an employer, understanding those boundaries helps you use investigation tools effectively to combat fraud and protect your insurance costs.

Why Employers Care About Investigators

Workers' compensation fraud costs U.S. employers billions of dollars every year. The Coalition Against Insurance Fraud estimates fraud adds hundreds of dollars per year to the average employer's insurance bill. Fraudulent claims drive up your Experience Modification Rate (E-Mod) — the multiplier applied to your base premium based on your claims history. A higher E-Mod means a higher premium. Legitimate investigations protect your bottom line.

When a claim looks suspicious, your insurer may assign a Special Investigations Unit (SIU) — a team of licensed investigators trained specifically in workers' comp fraud. You can also hire a private investigator independently, though it's best to coordinate with your carrier first.

What Investigators Are Legally Allowed to Do

The law generally allows investigators to take several steps — as long as they stay in public spaces and respect privacy rights. Here is what's typically permitted:

1. Public Surveillance

• Follow and film a claimant in public places (parking lots, parks, stores, sporting events).
• Record video from a public street or sidewalk outside the claimant's residence.
• Photograph activity that contradicts the claimed injury or disability.

Investigators cannot enter private property, look through windows into a home, or record inside a residence without consent. The line is the public/private boundary.

2. Social Media Research

• Review any publicly visible posts, photos, videos, check-ins, and tagged content.
• Screenshot and preserve public content as evidence.
• Monitor activity on platforms like Facebook, Instagram, TikTok, LinkedIn, and YouTube.

Investigators generally cannot send friend requests under false identities or access private accounts through deceptive means — courts have increasingly viewed such tactics as impermissible. However, public posts are fair game in virtually every jurisdiction.

3. Recorded Statements

• Take a recorded statement from the injured worker about the accident, injury, and current limitations.
• Interview coworkers, supervisors, and witnesses (with appropriate care around labor law).
• Review any prior recorded statements for inconsistencies.

The claimant's attorney, if they have one, may be present. State rules on recorded statements vary, so your carrier's SIU will follow the applicable guidelines.

4. Medical Record Review

• Obtain and review authorized medical records related to the workers' comp claim.
• Request an Independent Medical Examination (IME) — a review by a neutral physician — to verify the diagnosis and treatment plan.
• Look for pre-existing conditions that may have contributed to the injury.

Your insurer handles IME coordination. As the employer, you can request that your carrier schedule one if you have reason to question the treating physician's findings.

5. Background and Database Checks

• Search court records for prior injury claims or lawsuits.
• Check state workers' comp databases (available in most states) for prior claims history.
• Review publicly available business licenses if a claimant may be working elsewhere while collecting benefits.

6. Activity Checks and Field Interviews

• Canvass a neighborhood and speak with neighbors (without misrepresenting their identity).
• Visit worksites where the claimant may be working under the table.
• Observe the claimant at public events, gyms, or recreational facilities.

What Investigators Are NOT Allowed to Do

Even legitimate investigations have hard limits. Crossing these lines can expose your business to liability and get evidence thrown out:

• Trespass on private property to conduct surveillance.
• Wiretap or record phone calls without consent (federal and state wiretapping laws apply).
• Harass, threaten, or intimidate a claimant or their family.
• Impersonate law enforcement or government officials.
• Access private medical records without proper authorization under HIPAA.
• Retaliate against an employee for filing a workers' comp claim — this is illegal in every state and a separate legal issue entirely.

The Employer's Role in the Investigation Process

As an employer, you are not a passive bystander. Here's how you can support a legitimate investigation:

• Report the claim promptly. Delays make investigations harder. Report injuries to your carrier the same day or within 24 hours whenever possible.
• Preserve evidence immediately. Take photos of the accident scene, secure any equipment involved, and collect witness statements before memories fade.
• Document the job duties of the injured worker clearly. A written job description is invaluable for an IME physician comparing claimed limitations to actual work requirements.
• Flag inconsistencies to your carrier's SIU. If you notice a claimant posting vacation photos while claiming total disability, notify your adjuster right away.
• Cooperate with your insurer's SIU team by providing timely access to records, HR files, and witnesses.

You can learn more about building a strong claims management process on our workers' comp insurance services page.

How Fraud Affects Your E-Mod and Premium

Your E-Mod is calculated by the National Council on Compensation Insurance (NCCI) — the rating bureau that compiles loss data for most states — or by your state's independent rating bureau (such as WCIRB in California or PCRB in Pennsylvania). It compares your actual claims losses to what's expected for a business of your size and type (class code). A fraudulent claim that pays out inflates your actual losses, pushing your E-Mod above 1.0 and increasing your premium for up to three policy years. Catching fraud early — before a claim pays — can preserve a clean loss history.

If your E-Mod has climbed and you're unsure why, our licensed agents can walk you through a full policy and mod review.

Special Considerations by Industry

Some industries face higher fraud risk and therefore more frequent claim investigations:

• Construction: High injury rates and subcontractor complexity make investigations common. See our guidance on contractor bonding and coverage.
• Agriculture: Seasonal workers and H-2A visa programs create unique documentation challenges. Visit our agriculture workers' comp page for specifics.
• Trucking and transportation: Remote work environments make injury verification harder.
• Manufacturing and restaurants: High claim frequency means SIU involvement is fairly routine in these sectors.

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Frequently Asked Questions

Can an investigator follow an injured employee in their personal vehicle?

Yes. Following someone on public roads is generally legal. An investigator can observe and record a claimant driving, which is directly relevant if the claimant says they can't operate equipment or perform physical tasks at work. However, following someone onto private property — like a private driveway — is not permitted.

Can I hire my own investigator instead of relying on my carrier's SIU?

You can hire a licensed private investigator independently, but it's strongly recommended that you coordinate with your carrier first. Your insurer manages the claim and has legal authority to direct the investigation. Uncoordinated investigations can create evidentiary or legal complications. Talk to your adjuster before engaging outside investigators.

What should I do if I suspect an employee is working another job while on workers' comp?

Document your suspicions with specific, factual details and report them to your insurance adjuster immediately. Request that the carrier's SIU investigate. Working while collecting total disability benefits is one of the most common forms of workers' comp fraud, and investigators have specific tools to verify employment activity.

Does surveillance video have to be disclosed to the claimant?

In most states, surveillance evidence must be disclosed during the legal or claims process if the carrier intends to use it. Your adjuster and carrier's legal team will manage disclosure requirements. As the employer, your job is to report suspicious activity — let the professionals handle the legal mechanics.

Can a workers' comp investigation hurt me legally if it's done improperly?

Yes. Improper investigations — harassment, trespassing, illegal recording — can expose the employer or insurer to bad-faith claims, civil suits, or sanctions. Always let licensed SIU professionals lead the process, and avoid direct confrontation with an injured employee about a suspected fraudulent claim. That's a conversation for attorneys and adjusters, not the job site.

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Protect Your Business With the Right Coverage and Guidance

Understanding what investigators can and can't do is one part of smart workers' comp management. The other part is making sure your policy is structured correctly — right class codes, accurate payroll, and access to carriers that take fraud prevention seriously.

Our team at The Workers' Comp Experts works with employers across all 50 states to find the right coverage from multiple A-rated markets. Whether you're dealing with a suspicious claim, a rising E-Mod, or just want to make sure you're not overpaying, we're here to help.

Get a free policy review — call 859-407-4888 or request a quote today.

Joe Baxter, Licensed Insurance Agent, The Workers' Comp Experts