This is 10 years old, but in 2016 the Associated Press did a massive public records request for police departments across the country. Between 2013-2015, they found over 600 cases where the police department actually did an internal investigation, found this kind of misuse, didn't cover it up, and handed over the records. About half of those cases resulted in a firing, suspension, or resignation.

This is clearly an undercount, and I'm sure it's only gotten worse since 2016.

https://apnews.com/general-news-699236946e3140659fff8a2362e1...