Karnataka police will be in a dilemma, if Haneef is deported. Will they detain him for their questioning? or let him go as if nothing had happened? Possibly, they can't as Haneef must be having some information about Kafeel. Australian police may not have all those info because they might not have all the background info like college days people who regularly met Kafeel in Bangalore for indoctrination, but surely Bangalore police can get a lot of info from Haneef that may be useful for protecting Bangalore from terrorist attacks. It already had more than its share!