It's also called obstruction of justice, harboring a fugitive, conspiracy, or being an accomplice after the fact. You should go back to the police academy, if you attended one, and sit through the session(s) you slept through or couldn't comprehend...
i think our disconnect lies in the fact that i am assuming a bad cop has been caught doing something and other officers, while condemning the behavior, may show support by helping his family out with a couple of bucks, showing up at court proceedings and the like. wouldn't you do that for a brother?
i didn't mean hiding a rogue fugitive cop in your basement in order for him to ellude capture! you guys are priceless!