Don't expect perfect resolutions in police work
One can surmise that all police officers are not perfect, but one can also surmise that society is not perfect either. In fact, some segments of society are completely dysfunctional, considering murderers, rapists, thieves, muggers, child molesters, wife beaters, girlfriend beaters, those who don't pay child support, and so many others who behave unlawfully.
When the dysfunctional ones break a law, the not-always-perfect police officers step in. They are hired to enforce the law, protect property and defend the innocent, and some of society expect a perfect resolution. However, sometimes the resolution is not perfect - not necessarily against the law, just not perfect - and when that happens the demonstrators hit the street to loot, destroy property and burn buildings.
Sometimes in these melees police officers are killed - but protesters don't speak up or march on their behalf. The dysfunctional protest on behalf of the law breakers but spit on the police officers. How sad.
Silvio Pontarelli
Mount Prospect