Discrimination and self-selection also exists among police. They intentionally hire those with low IQs: https://www.google.com/amp/abcnews.go.com/amp/US/court-oks-b...

That is not to say there aren't honorable and amazing police officera who deal with the worst of society; but our policing force has serious problems beyond even the unbelievably awful militarization and race discrimination.