Activity Check vs. Surveillance: Which Does Your Claim Need?

Adjusters frequently ask the same question: should I order an activity check or full sub rosa surveillance? They're related tools, but they answer different questions at different price points. Getting the match right drives ROI; getting it wrong wastes budget on both sides.

What an Activity Check Is

An activity check is a short, targeted verification of a claimant's current status. It typically answers:

• Does the claimant actually live at the address of record?
• Is there observable activity at the address?
• Are there vehicles at the address that match the claimant's reported vehicles?
• Is the claimant visible and apparently functional / non-functional?
• Are there other adults at the address who might be supporting the claim?

A typical activity check runs 2-4 hours, covers one or two visits, and produces a short written report with supporting photos.

What Sub Rosa Surveillance Is

Sub rosa surveillance is extended, covert observation and video documentation. A day of sub rosa runs 8-10 hours. It produces HD video, a chronological narrative, and a chain-of-custody-preserved evidence package. Our sub rosa definition post covers what it is in detail.

When to Order an Activity Check

Activity checks are right when:

• You need to confirm basic facts before committing to surveillance
• The claim is lower reserve, but there's some red flag worth testing
• The claimant may have moved, and you need to verify address
• You're scoping a potential undisclosed employment case and need to confirm the residence as a starting point
• The file needs minimal touch but the adjuster wants eyes-on-site

When to Order Surveillance

Sub rosa surveillance is right when:

• There are specific red flags that justify extended observation, see red flags that trigger surveillance
• The reserves or exposure are substantial enough to support the investment
• The subject has a predictable pattern that can be observed
• There's a specific functional question (can the claimant lift? drive? return to work?) that video can answer
• A QME, IME, deposition, or settlement conference is coming up

Why Not Skip Straight to Surveillance?

In the right case, you should. But in many cases, an activity check is the cheaper de-risker:

• If the claimant has moved, an activity check catches it before you've spent 8 hours watching a vacant residence
• If the claimant is clearly non-functional on a short observation, that can inform the reserve and close the file
• If the activity check surfaces vehicles or occupants you didn't know about, it changes the surveillance plan

Why Not Just Do an Activity Check and Stop?

Sometimes that's correct. But if the fact pattern warrants extended observation, stopping at an activity check can mean:

• Missing the window where activity inconsistent with the claim would be observable
• Missing work-while-on-benefits that only becomes visible over a full day
• Building a thin file that doesn't actually move the case

The Combined Approach

The strongest approach on many files is:

1. Start with an activity check
2. Review social media (see social media investigation)
3. Make the scope decision: stop here, or commit to sub rosa
4. If sub rosa, plan it based on what the activity check surfaced

Cost Comparison

Activity checks are much cheaper than sub rosa. A typical activity check runs a few hundred dollars. A single day of sub rosa is usually several times that. See our surveillance cost post for a fuller treatment.

Reporting

Both produce written reports with time-stamped photo / video documentation. The sub rosa file is much larger, covers many more hours, and includes a more detailed investigator narrative. The activity check file is short and fact-focused.

In Practice

Most insurance carriers and TPAs use both. Activity checks serve as a first-touch verification. Sub rosa is reserved for files where the red flags and reserves justify the spend. Our surveillance and activity check services provide both products with the same investigators, reporting format, and chain-of-custody standards, so you can escalate without a handoff.

Decision Framework by Claim Type

Different claim types tend to pull toward one product or the other. Experienced adjusters develop an intuition for the match. Soft tissue claims with subjective complaints and no objective findings are classic sub rosa candidates. The functional question can only be answered with extended video. A claimant who reports being unable to sit for more than fifteen minutes needs to be observed long enough for the pattern to emerge or collapse. A two-hour activity check rarely produces that window.

Cumulative trauma and repetitive stress claims often benefit from an activity check first. The threshold question is frequently whether the claimant is working elsewhere. That means establishing the residence, observing departures, and identifying vehicles. If the activity check surfaces a commute pattern, the file escalates naturally into AOE/COE and workers' compensation surveillance with a specific target and time window.

Catastrophic claims with high reserves almost always justify sub rosa regardless of what an activity check would show. The exposure is too large to resolve with a two-hour snapshot. The evidence standard for a settlement conference or trial demands the depth that only extended observation produces. On these files, an activity check can still be useful as a pre-surveillance reconnaissance step, but it is not a substitute.

Liability and premises claims sit somewhere in the middle. A slip-and-fall claimant alleging inability to climb stairs can be tested quickly with a targeted activity check at the residence if there are steps, a second story, or a yard that requires maintenance. If the initial observation is inconclusive, the file moves into broader insurance fraud investigation with a surveillance plan built around the claimant's routine.

What Each Product Cannot Do

Both tools have limits. The fastest way to waste budget is to ask one of them to answer a question it is not designed to answer. An activity check cannot establish a pattern. Two hours on a Tuesday morning tells you who is home on a Tuesday morning. It does not tell you whether the claimant:

• Goes to a job site on Wednesdays
• Coaches a youth league on weekends
• Performs side work for cash out of a garage

Adjusters who order an activity check and expect a definitive ruling on functional capacity are asking a short product to do long work.

Sub rosa, conversely, cannot efficiently answer questions that a database search or a records pull would answer faster and cheaper. If the real question is whether the claimant owns other property, has business registrations, or has assets worth pursuing in subrogation, the right product is insurance background and asset investigation, not a surveillance van parked down the street. Sub rosa also cannot answer questions the claimant never goes outside to demonstrate. A homebound claimant with legitimate impairment will produce a legitimate no-activity report. That outcome, while useful, is not the same as proving the claim is valid.

Sequencing Across a Claim Lifecycle

The product mix should shift as the claim ages. Early in the lifecycle, when the file is fresh and reserves are being set, an activity check provides a low-cost confirmation that the fundamentals of the claim are accurate: the address, the household, the visible functional presentation. This early touch prevents the file from accumulating months of payments on a foundation that was never verified.

In the middle of the lifecycle, sub rosa becomes the higher-value product. Treatment is ongoing and the carrier is watching for indicators of malingering, symptom magnification, or undisclosed work. This is the window where a claimant's routine has stabilized. Video of inconsistent activity has the most leverage with a treating physician, a QME, or a defense attorney.

Late in the lifecycle, ahead of a deposition, an IME, or a mandatory settlement conference, a targeted sub rosa push frequently produces the evidence that drives a negotiation. A well-timed day of video captured the week before a deposition can reshape the questions defense counsel asks and the answers the claimant provides under oath.

How Adjusters Build the Order

Experienced adjusters typically give the investigator three things on the order:

• The specific factual question they want answered
• The reserves and exposure context
• Any deadlines that constrain the window

With that, a competent investigator can recommend the right product rather than simply filling the order as written. At Encyphir, we frequently take an activity check request and recommend either a smaller scope than requested (because the question can be answered in an hour at the workplace rather than the residence) or a larger scope (because the fact pattern clearly warrants sub rosa and an activity check will simply delay the inevitable).

If you are uncertain which product fits a specific file, the most efficient path is a brief conversation with an investigator before the order is placed. Our team is available through the contact page to review the facts and recommend a scope that matches the claim. The wrong product on the right file costs twice. The right product on the right file frequently resolves the question in a single assignment.

The choice between activity check and sub rosa is not a philosophical one. It is a practical match between the question on the file, the exposure at stake, and the evidence needed to move the claim to its next gate. Carriers and TPAs that treat both products as part of a single toolkit, rather than competing line items, consistently produce better outcomes at lower combined cost.