Yes, they can use the video - and yes, it can be misleading as hell

If you were T-boned in St. Louis, ended up with a broken leg and a shattered kneecap, and now some stranger in a parked SUV is filming you outside Schnucks or while you're getting into your car in South County, that is not your imagination.

It's usually an insurance company move.

In Missouri, the at-fault driver's insurer is looking for anything it can use to cut the value of your claim. Missouri is an at-fault state, and the minimum liability coverage is still just 25/50/25. That means a lot of cases start with a cheap policy and an insurer already hunting for reasons to pay less. If your injuries are serious, the pressure gets worse, not better.

A private investigator doesn't need footage of you sprinting through Forest Park to cause trouble. Ten seconds of you carrying a bag, stepping off a curb in the Central West End, or laughing with a friend can be edited into a story: see, she's fine.

That story may be garbage. But it's the story they're building.

A shattered kneecap doesn't mean you look disabled every second

Here's what most people don't realize. Bad injuries don't perform on command.

A broken leg and kneecap injury can leave you in brutal pain, limit bending, make stairs miserable, and wreck your ability to stand all day. That matters a lot if you're a dental hygienist, because your job is basically controlled posture, repetitive movement, and hours on your feet. But a camera clip won't show swelling later that night, the pain after physical therapy, or the fact that you paid for one grocery run with two days of ice packs and meds.

Same problem with an old back injury. If you had a back issue from five years ago, the insurer will try to mash everything together and say this crash just "temporarily aggravated" an existing condition. Surveillance footage becomes part of that argument.

So no, video of you functioning for a few minutes does not automatically destroy your case.

But if your medical records say you cannot bear weight at all, and the footage shows you moving around without crutches for an hour, now you've got a credibility fight.

What the investigator is allowed to do in Missouri

Generally, if you're in public, you can be photographed or filmed.

That means outside your apartment in Tower Grove, in a parking lot in Brentwood, at a gas station off Hampton, or walking into a medical appointment, expect no privacy. They can sit on a public street and watch. They can follow at a distance.

What they usually cannot do is trespass, harass you, pose as your friend to get private access, or record where you actually have a reasonable expectation of privacy.

Still, the line that matters in a claim is not just whether the investigator behaved badly. It's whether the footage gives the insurer ammunition.

The biggest mistake is trying to "act injured"

Don't do a limp for the camera.

Don't suddenly stop doing something your doctor approved just because you spotted a guy with a telephoto lens.

And don't post the kind of social media nonsense that gets paired with surveillance footage and used against you. A photo from a Cardinals game can turn into "active social lifestyle." A smiling picture at a family barbecue becomes "full recovery." The adjuster doesn't give a damn that you left early because your knee was throbbing.

If you think you're being followed, do this:

• keep going to treatment, follow restrictions exactly, tell your doctor about good days and bad days, assume anything you do in public can be recorded, lock down social media, and write down dates and places where you noticed the surveillance

Why this gets ugly in a St. Louis crash case

T-bone crashes are violent. Side-impact wrecks at intersections like Kingshighway, Lindbergh, or stretches near I-70 ramps can throw all your weight sideways and trash a knee fast. If your leg hit the dash or twisted under you, that mechanism of injury makes sense. So does a back flare-up from a prior condition getting a whole new jolt.

The defense knows juries understand obvious fractures. That's why they look for a workaround: not "she wasn't hit," but "she's exaggerating now."

Surveillance is built for that.

One clip of you getting into your car on your own does not answer whether you can safely work a full day cleaning teeth, adjusting chairs, leaning over patients, and moving room to room. It doesn't answer whether your kneecap hardware hurts in cold weather or whether standing for hours sets your back on fire.

The records matter more than the camera if they're consistent

The strongest answer to surveillance is boring, consistent proof.

ER records. Ortho records. Imaging. PT notes. Work restrictions. Notes about limping, range-of-motion loss, swelling, and pain after activity. If your chart shows a real pattern, a slick little video montage has less punch.

If your records are thin, delayed, or all over the place, the footage gets heavier.

That's the part people screw up. Not because they're lying. Because they assume the injury speaks for itself.

It doesn't.

Once a private investigator is involved, every ordinary errand can be turned into an argument about whether your broken leg, shattered kneecap, and worsened back are really as bad as you say. In a Missouri claim with low policy limits and a carrier looking for a discount, that argument is exactly what they paid to create.