I have run into ATF agents who were decent guys but the agency’s managers are intent on violating the Constitution every single chance they get.
At times they have been a rogue agency totally out of control but with the blessings of their superiors.
I heard at the close of WWII, some German troops and Nazis claimed to be decent guys and suddenly were talking lots of cheet about management when their pay checks stopped and their managers ran for the tall grass.