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What news doesn't report - because it's not its job - is the good, normal everyday stuff.
If the majority of law enforcement does the right thing most of the time - we, the public, take it for granted.
When law makes mistakes, we get outraged. We expect the law to be above human error, which is unfair. Unfortunately, this can lead to a distorted view.
We also expect it to be above all kinds of hypocrisy or corruption - for good reason, but perhaps somewhat unrealistic among so many millions of people.
And then again, there are the brutal government statistics which show how often law goes wrong - stuff like race crimes and race riots, and this can be very scary.
It is the instances that go wrong which unfortunately stick in public perceptions.
Woops - I got onto a rave there - hope you don't mind. :/