In what capacity? Photographing the crime scene? Filing a report?

We both know that if I don't protect MYSELF in the moment, I won't get protected at all.

Them photographing my dead body and filing a report benefits me how exactly?

My avoiding the police by obeying the law and avoiding those who don't, harms whom exactly?

My overwhelming experience and observation is that those who have a lot of non-professional encounters with police make a lot of bad decisions, largely involving poor impulse control and a failure to grasp the concept of cause and effect.

If you're talking to the cops, somebody did something wrong, either you, the cops, or a third party.