But it is a potential conflict of interest, hence it is something worth addressing, no? Especially it's in the best interests of both the cops and the people.
Then again, you could be seen as punishing the cops for making a (possibly good) arrest by forcing them to spend long hours processing paperwork and not getting paid. Though, I do agree that the current situation is stacked in a bad way.
It's better than encouraging them not to fill out paperwork.