Well, torture is a complex art, but the basics I learned on my first year, are really quite easy. Your worst enemy is defiance. Don't do anything to bolster that emotion, like by making the client hate you. You need to intimidate them instead. Everyone has some secret fantasy of domination. Some want pleasure, some want direction, some want understanding. But first, you have to shake the client up. A few methods exist, choose one you feel most fitting the client - one is by cold water, other by stripping and restraining, another is plain old beating up. Then you start applying verbal and physical stimuli, like poking them with a stick, to scare and please them in turns, so they'll feel inclined to pleasing you back by answering questions. If they go into shock, some lashing will bring them back to reality. Most will eventually tell you their little secrets. Some will remain argumentative. These are beyond help and deserve punishment like they were real criminals. Yes, simpletons say brute force always works best, but the Inquisition cannot go around murdering innocent witnesses, that'd make people less helpful to us.