I don't actually know. If I have a dispute with a UK-licensed bookie, to whom do I turn? Don't tell me I have to ring up Tony Blair.

The closest I can get is...

http://www.gamblingcommission.gov.uk/Client/index.asp

Who does the casino spot-inspections where the decks are checked in a shoe and such like?

IBAS supplies arbitration for members, but this isn't the what I'm looking for. I want to know to which regulatory body UK bookies, casinos and gambling ops generally answer.

Seems like I should know this off pat, but I've never had any reason to give it much thought.