Most are not pond scum, at best.
I'm not a police officer and hold no brief for them.
Most, like the rest of us, are trying to do a difficult job in testing circumstances.
Some are complete arse-holes who give a whole new meaning to 'corrupt incompetents' but probably there are no more than in any other professional organisation. The magpies in any professions, Politics included, get the rest a bad name and should be weeded out with the utmost prejudice as an example to others. We cannot afford for the law to come into disrepute by either lawyers, judges, politician, the police or the public thinking they are above it.
Only through the law can justice be achieved. everything else is vengance.