You're definitely on the right track.
The only actual job of the police is to file crime reports.
They do not prevent crime. Protect innocents. Make people show up for court etc. They have no obligation to stop a crime in progress or protect someone being hurt, even if they're standing right there and could stop it.
Anything in the justice system that you value is either done by someone else, or actually isn't done at all.
Must have dropped out of strawman school...