Funny, You can dismiss actual eyewitness and victim testimony by calling it "anecdotal".
You are left with "theoretical" which is even more easily dismissed.
They even prohibit voice recording and dismiss video and actual photographic evidence as inaccurate, misleading, edited, photoshopped, missing the "whole" story, etc ad nauseum.
Get it? NOTHING is accepted as evidence of government abuse of authority, and if you do have it, you will be appropriately punished with reprisals of every conceivable dimension for daring to challenge the powers that be.
Evidence is either "secret", confidential, or a matter forbidden the light of day by the "privacy" act which was a MASSIVE FRAUD ON THE PUBLIC DESIGNED TO COVER THE ... OF EVILDOERS, NOT CITIZENS WISHING PRIVACY.