Sometimes ...but there are other reasons....like not producing proper embouchure when asked to kiss butt....being a pain in the ass about arresting people without PC...or the Chief doesn't like you for whatever reason. Seems like chiefs spend most of their time screwing people. Went through three of them. All the same.
but my guess is that his girlfriend dropped a dime on this guy to internal affairs. even if her story was total BS, the job will take your gun and shield away pending an "investigation" that could take years. all the while, you're stuck in central booking processing perps and being miserable.