This is what often prevents Europe and other places from having faith in America. Canada has a problem with the covert variety which even a S Korean cop online told me, without me going into details that "we don't use kids to target kids in Seoul".
In Sweden to be a police officer requires years of training and education, it is viewed as an honourable profession run by top performers.
Some police agencies and nations build a reputation and it not only hurts faith domestically, but internationally. It must be difficult dealing with a more violent criminal element, but still, one has to remain a professional. If your Constitution and civil rights dont mean anything you will become Canada.