Drunk individuals taken into protective custody in the Northern Territory are being identified using a fingerprint biometric system implemented by Unisys.In the NT, those who get into trouble with the law while intoxicated three times in three months are placed on the Banned Drinker Register (BDR), and cut off for a year.
One of the problems of dealing with people severely under the influence of alcohol is that they may be unwilling or unable to identify themselves, and not all members of the community carry identification.
More information on the Northern Territory banned drinker register [pdf]