So we have just defeated the monstrosity at Fox glove manner and we looked through his loot and found a stalkers mask. It does not give off an evil aura. The party is a bunch of people who are chaotic neutral and I am running a paladin. My question is this. Is it legal to keep and use the stalkers mask? It is a mask made from other human faces. I want the party to ditch it to proper authority because it evidence of a serial killer but talking with my Pathfinder friends and the DM, we can't figure out the actual legality of it. They want to keep it because it helps the human rogue.
Tldr: is the stalkers mask legal to have and use? It is made of other human face, but is illusion based and does not have an evil aura