As a teenager, I regularly argued with my dad (senior officer in CID) that the police had to be ‘squeaky clean’. He never disagreed that should be the expectation. He argued that the police recruits from our society, so inevitably a few corrupt officers would be identified. A 40 year career of my own, in various organisations, eventually convinced me, he was right.
Im in no way defending corrupt, violent officers. Our society in general has too much alcohol fuelled violence, including sexual violence. There seems to be a problem with officers covering for others when police are called to violence in an officers home. Skilled training and high expectations happen in some of the specialist teams.