By my interpretation, your last paragraph seems to accuse police of very specific misbehavior, but without any evidence, and even with an explicit desire to avoid resolving your accusation one way or another.
I hope you agree that we should take every single accusation of wrongdoing extremely seriously: only then can we truly achieve accountability for bad behavior, while celebrating and rewarding good behavior.
Unfortunately, purely speculative accusations of specific wrongdoing like this compromises our ability in general to take accusations seriously! It also subtly harms the reputations of good people within the accused group, if the accusation is unfounded.
For example, imagine if I said out of the blue:
“I worked with <anilakar> through all April 2019. (Don’t ask me if <anilakar> ever stole a MacBook Pro from the Apple Store on April 5th 2019 at 3:45pm. I don’t want to know anything about whether that did or did not happen.)”
Hopefully this illustrates the potential harm of such comments.