COOL FOR: SANE PEOPLE. WELL-ADJUSTED COPS. THE NON-SUICIDAL.
Volition urges you to be a good guy — to others and to yourself. It enables you to resist temptation: be it in a bottle, between a pair of legs, or at the end of an iron barrel which promises oblivion. Volition gives you the will to finish the investigation, improving your Morale — one of the two health pools in the game.
At high levels, Volition makes you hyper-sane. When you're about to get funky, it keeps you normal. It's a bit of a party-pooper. At low levels, however, you'll have little Morale. Without it, you'll be a profoundly unstable cop, falling apart at the seams as you make irreversible mistakes.