Your indulgence please your fish n chips, but i must add that anyone knows how to inflict great amounts of pain. The process is far more effective when one adds a certain amount of mental anguish to the process. My favorite techniques have always involved the giving and removing of hope (along with certain body parts) from the heretic. At the end he must beg for death, and be in despair that his or her worst horror would be the possibility that they might live through the interrogation, with what physical "assets" they have remaining.
I agree, excuse me while I dismiss the rest of your competition.
[turns to the others and says...]