Police officers are well known for their aggressive behaviors, search "Police Officer Angry Aggression Theory". I can speak from personal experience that they do cover up for each other and target individuals that they have a vendetta on. Police Internal Affairs is just an extension of the cover up machine, they uphold very few complaints.

Police Officer Angry Aggression Theory (POAAT) is why you need to video record the police before they shoot you. Always start the video camera at the first contact, as it can go sour at any time and without warning.

Do not get mad, get science.

The truth about angry and aggressive policing came out in 2020.

In the era of angry and aggressive policing, it is an honorable service to your fellow citizens to video record police officers interactions with the common people.

I am not angry at Microsoft, as they did give me Windows 10 for free! I do feel a little misled about its reliability on older computers never certified for its installation by the manufacturer though.