exposing the DWP and their techniques

following reading this article http://liberalconspiracy.org/2009/03/11/liberal-conspiracy-briefing-exposing-the-dwps-lie-detector-testing/

i feel that this is a profoundly unfair and unreliable method of testing people for fradulant claiments.

In the article it mentions that the lie detectors taht have b een broguht in from America to test benifit claiments is over 60 % inaccurate. meaning that alot of people will be found to be commiting fraud wrongly. I know cuts have to be made and benifit cheats need to be dealt with but to use unreliable methods and tests is just unfair. Surely there must be better and more reliable ways of means testing if someone is entitled to claim for benifits?