These days, we know the police are not here to protect the public, rather to serve as an occupying garrison for the ownership class, and while this was always the case, the DEA and war on drugs and the 1033 program have made this role even more clear.
American police. Police in different countries are structured in very different ways.
American police. I know that Scotland Yard is willing to bash journalist faces when the MPs are upset with the news. France has brutality problems similar the US if not so extremely common.
Maybe you’re speaking of nations other than those. I assume Liechtenstein law enforcement are polite and professional.