Who are armed and empowered because of the criminals and to deal with the criminals. That is their job. You want to isolate people doing their job (badly or otherwise) from that which they were employed to deal with, because they are employed to deal with it by the state?
Nobody is saying that. But your not doing your work is not a justification for your students not doing theirs, especially if your students aren't doing work in every other lecturers class too.