IAAL. If you’re in the US, you may have noticed the explosion in plaintiff attorney advertising over the last 15 years. Do you want to sue: the other driver, Monsanto, the Boy Scouts, 3M, the Catholic Church, Aesbestos manufacturers, etc. Notice that you never see ads for suing for police misconduct? It’s because it’s such an anomaly that it would be a waste of money.
It’s one of those things that’s upsetting, so our brains exaggerate the actual relevance.
Just because you've never seen it advertised doesn't mean it isn't happening. And there's 3300 counties in the US, and fifty state police entities, plus however many municipalities with police forces. Also, if you AAL, "qualified immunity" makes it difficult to "go after" individual police, so most suits are filed against the city and the department for having "bad policy" - because proving civil rights violations is quite difficult, even if it seems like a cut and dry case.
I get calls everyday about suing everybody: employers, gas stations, doctors, dentists, teachers, banks, landlords, etc. Cop calls are rare.
A couple of times in my first five years or so, someone called and had a story that sounded plausible, and I got the video - either from the car or the venue. After watching them, I basically stopped taking those calls.
It’s one of those things that’s upsetting, so our brains exaggerate the actual relevance.