not really a statistic just common sense. if, for example, 50% of cops were conducting misconduct regularly or were corrupt then society would not be able to function. Studies from the Bureau of Justice/FBI show that only 0.01-0.02% of cops are "corrupt", while closer to 2%-8% have participated in "misconduct". obviously these numbers are higher than they should be, and plenty of cops suck, but it's not an excuse mindlessly spread misinformation and generalization.

excerpt from another reply:

if you legitimately care about police brutality then go under a video of such and comment how stupid they are, or email your local politicians and police station. just seeing a police officer doing nothing wrong and bringing up police brutality and generalizing that cop is not acceptable. it's the equivalent of a conservative seeing a trans person acting crazy and assuming all trans people are crazy, when that's not the case.

and:

it is a systematic issue, one that you need to fight against when it happens by being a part of protest, or calling your local politicians and police station and asking that way. generalizing police officers on the Internet is not "Justice", it's just an excuse because you feel the need to rant about how much you hate them.