This is working as designed, you are not meant to be able to take them from your prisoners as it would be a bit too overpowered as you could just kidnap all the sword owners and take the swords easily.How come when I have someone imprisoned and they have a weapon I cannot steal it from them? I imprisoned and then executed for the crab's pincer but it still went to his next of kin. Is there a way to actually steal from them or is this a broken mechanic?