You might find the following to be a comfort....
Some number of years ago I worked for a Government Dept, and I was "lent out" on occasions to the Home Office.
I can't give too many details, but part of my job was observing the Police.
Most of them were, and from what I still see are still, the thickest, most stupid individuals it has ever been my misfortune to meet.
The best part of my job was that when I had to report on their behaviour and actions, I used to write the truth in my reports and slag them off to the Home Office something rotten, [and all ranks, too!].
There was never any comeback, and I got the distinct impression that the Home Office, [unofficially, at least], agreed with me!
If the "MODPLOD" are anything like the civvy lot, just go into it with the knowledge that you have a far more superior intellect than them, right from the start.
Baldeagle in Staffordshire.