You did not address the duty to protect (or whatever we might call it) that attaches to cops once they arrest someone, handcuff them and just generally (and maybe for good reason I’m not saying otherwise) take away that person’s autonomy.
I am watching Batman right now.
Chief O’Hara always wants to give the criminals a good beating with a nightstick.
I remember very early episodes of “Dragnet” where they routinely violate people’s rights and not just a little bit.