We’ve updated the yakuza terminology section here and there. If you’re interested in the Japanese underworld and anti-social forces, have a read. Brush up on the Japanese you shouldn’t know. By the way, if someone knows how to play itachi-gokko the correct way (like young kids used to play it), please teach me how. It sounds sort of fun.
itachi (鼬・いたち）: a weasel, but in the yakuza world also slang for a very good police detective. いたちごっこ(itachgokko) “to act like a weasel” refers to a game that Japanese children play in which it is impossible for either side to win. The police versus the yakuza war which has been going on since 1965 is often referred to as itachigokko.
bakecho （化け調・ばけちょう）: A shady private investigation firm, or a supposed corporate investigation that is carried out under fraudulent pretenses or with the goal of blackmailing the target, and/or illegally obtaining information for the yakuza or other anti-social forces. Private investigation firms are often used as front companies for the yakuza, and since they also collect information, they are wonderful vehicles for collecting intelligence to extort money from people or silence investigators. Recently (February 2012) the Private Investigation firm, Galu Agency, which has 150 offices nationwide in Japan, had their Yokohama bureau chief convicted for fraudulently obtaining the personal records of an organized crime cop—on behalf of the Yamaguchi-gumi Kodo-kai. Yakuza Private Eye–it’s a scary combination.