You can see cops using traditional jujitsu alot in there arrest techniques, the small joint locks, wrist locks and pain compliance moves. Krav Maga is kinda like MMA, its a mix of alot of things, including boxing, kickboxing and jujitsu. My personal opinion is that KM isnt alive enought to be as effective as some other styles, however I think their drills are really cool. I mean, you can drill how to do a move sequence over and over and over but without actually hitting, choking, or applying a submission againts a resisting opponenent, how do you know the moves will even work? The few dojo's I have visited practiced in street clothes and drilled in a actual training enviroment. People were carjacked, they went to actual alleys and did simulated muggings. I thought that was fun.