We anarchists are generally averse to cooperating with the police, for very good reasons. However, as I understand it, at times the only real way to protect the community in the society we currently live in seems to be talking with the pigs.

Suppose you believe yourself to have evidence incriminating a serial killer. In an anarchistic society the serial killer could be sent to the psych ward and dealt with humanely. But what about the modern day? Do you turn over the evidence to the police?

This question has been bothering me for about 3 days now. It was provoked by learning about Aufhebengate. It made me wonder under what circumstances snitching is justifiable.