It's about how you show it. If it's clear from the film that the behavior is not OK, I think it's fine to show things that are absolutely happening in the real world. We get films and shows where cops murder people, steal drugs, whatever. And that's certainly not normalizing this behavior. Not showing it is, in my mind, sweeping the well-documented asocial, asshole behavior of many cops under the carpet. Copaganda, essentially.