I think it's very helpful to understand that the police have their own agenda and a completely different perspective on the situation as you. they don't really give a shit about your problems, if they show up, its to see if there's anything that intersects with their world. this is why even as a victim talking with the police is a deeply confusing process -they seem to care a lot about stuff that doesn't matter as well as not being that interested in whatever crime may have occurred. and depending on the circumstance you could easily be the one getting your legs kicked apart. you learn that eventually, but some hints probably help