If law enforcement screws up, they don't release it.
If they do something for which the municipality could be sued, “they forgot to turn it on.”
If the do something for which the personnel involved should rightly do hard prison time, they seize camera footage from everyone in the vicinity.
Most of the time we see footage which vindicates the officers, but which leftists and people living a criminal lifestyle ignore.
Usually the cam is released when the cops think they are wrong but it takes longer. The police and their lawyers have to think up a good narrative.
The cop was listening to Merle Haggard. That’s country and western musing. The guy is obviously a racist. /sarc