If found giulty, throw them in a real prison for life. If later you find out you have the wrong guy - which happens all too often - it can be corrected.
Which means that they can then murder other inmates and prison staff with impunity, as nothing worse can be done to them.
28 posted on 07/24/2014 11:27:55 AM PDT by Slings and Arrows
(You can't have Ingsoc without an Emmanuel Goldstein.)