Not me. I know quite a few defense attorneys, police officers, and police officer's ex-spouses. Widely reported from too many states and communities not to be widespread. I can't document that it happened in every little town in Montana, as you point out.
Yes, defense attorneys are stellar witnesses as well.
As a former LEO I say he should be fired at a minimum. Efforts must be made to weed out the losers to ensure integrity and public trust which sad to say is waining quickly. I will say out of the vast numbers of police officers there are more good ones than bad. The problem in the small towns is low pay and the type of person that attracts, catch-22, you need someone but you cannot draw quality people.
I worked for over 12 years and never made up a charge or stole anything from anyone and I know lots who followed suit. Be careful of using absolutes.