This, or at least excerpts, should be a must-read for every adult; We (and I am talking Europeans, mostly) have forgotten how our Law Enforcement developed, how interests, rules of conduct and duties shift over time depending on who pays the salary and what population segment is considered valuable enough to be protected.
There can be a huge cognitive divide between public expectations on how a Cop is supposed to act - which is fuelled by government propaganda, popular media and an idealistic view - and their actual priorities. Which, do not get me wrong, does NOT excuse abuse of power and misconduct by the LEOs, but it adds to the discontent of people who expect and deserve to be protected.