"It's better when you have several prisoners. You put them in one place and ask each one for the location of enemy camp. Then you slit their throats at a slightest sign of refusal, one by one, until there is only one left. This is usually the end, because the poor fellow breaks by then. If he doesn't well... all the better for you."
-- Kavar Maldafaroth, the halfling rogue/barbarian, explains how to interrogate prisoners