To protect and insure that its members are never punished for any wrongdoing they wrongdo. EVER NEVER.
Police unions are criminal enterprises that protect the corrupt from being accountable.
Simple as that.
So you see why tumbleweed and cops go together like peanut butter and jelly ham and eggs coffee and cream blood and guts guns and roses bread and butter guns and ammo?
Contempt for the rule of right. Support of all wrong and wrongdoers. Unequivocally relentlessly AGGRESSIVELY thy will be done. Whatcha gonna do? You can't make a silk purse out of a sow's ear now can you? Expecting to is well a fantasy.