Covert video surveillance is a standard tool in the workers' compensation defense toolkit for cases involving disputed physical limitations, high permanent disability ratings, or high-cost medical treatment. A carrier that suspects a claimant is not as limited as the treating physician has documented will retain a private investigator to follow the claimant and document any activity that appears inconsistent with the claimed limitations. When the surveillance produces such footage, it becomes a powerful weapon at trial and at deposition. Applicants' attorneys who do not proactively address the surveillance issue are repeatedly surprised by video that surfaces at the wrong moment.
What the Defense Is Entitled to Record
In California and in most workers' comp jurisdictions, private investigators may conduct surveillance in public spaces and may record what is visible from public access points without constituting an unlawful invasion of privacy. Activities in the claimant's private yard, inside the home through a window, and in other private spaces are generally off limits without court authorization. In practice, investigators record claimants entering and leaving their homes, loading vehicles, walking distances, lifting objects, performing household errands, attending recreational activities, and visiting businesses.
The defense is not required to disclose that surveillance is being conducted, and claimants have no right to know in advance that they are being observed. What the defense IS required to do in California is disclose any surveillance evidence before using it at deposition or trial. Under California Code of Civil Procedure Section 2025.210 and WCAB precedent, surveillance videos that will be offered into evidence must be produced to applicants' counsel before the claimant is deposed, giving the attorney an opportunity to review the footage before the deponent is questioned about activities shown in it.
Timing of Disclosure and the Deposition Trap
The disclosure timing issue is critical. If the defense serves surveillance evidence after scheduling a deposition of the treating physician but before deposing the claimant, it may present the video to the treating physician at deposition and ask whether the activities shown are inconsistent with the physician's work restrictions, all without giving the claimant's attorney a meaningful opportunity to prepare the claimant's explanation.
To prevent this sequence, applicants' attorneys should serve a specific demand for all surveillance evidence, including video, photographs, and written investigative reports, at the earliest stage of the case. Include in the demand a request that any surveillance conducted after the demand date be disclosed on a rolling basis within 30 days of creation. File an objection and a motion to exclude if the defense attempts to use surveillance evidence at a physician deposition before the claimant has had an opportunity to explain it.
Admissibility Challenges
Surveillance video is admissible in workers' comp proceedings under the same general evidentiary standards applicable to documentary evidence. The primary objections are: (1) authentication, requiring the private investigator to testify or provide a declaration about when, where, and how the footage was recorded, and confirming that it has not been edited; (2) relevance, where footage shows activities during a period before the claimed injury date or during a period when the claimant was not claiming disability; (3) incomplete context, where the footage shows a momentary activity without revealing the pain or functional limitation that followed; and (4) selective editing, where the investigator recorded hours of video but produced only the few minutes that show activity inconsistent with the claimed limitations.
The selective editing objection is worth pursuing in every case where the defense produces surveillance. Demand the full raw footage, including all footage from each surveillance session regardless of whether the defense intends to use it. Raw footage that shows the claimant limping, using a cane, or resting repeatedly during the same session in which the defense selected footage of a brief activity will often provide context that neutralizes the defense's chosen clips.
Preparing the Client for Surveillance
Advise every client in a litigated workers' comp case to behave consistently with their claimed limitations at all times, not only at medical appointments and depositions. Explain that private investigators may be following them and that conduct inconsistent with the work restrictions documented by the treating physician will be captured and used to challenge the claim. This is not coaching; it is making the claimant aware of their legal environment.
Equally important: do not tell clients to avoid or limit legitimate activity beyond what their genuine limitations require. A claimant who is told to stop going outside to avoid surveillance, and who then shows signs of depression or anxiety at an IME, has created a new problem. The goal is consistency, not avoidance. For more on workers' compensation discovery practice, see the workers' compensation practice section. Evidence presentation strategy at WCAB hearings is covered in the practice operations section.