29 November 2012 –
The move has already helped anti-fraud officials catch nearly 4,000 fraudsters claiming council tax discounts and saved more than Â£1,400,000 in four months.
The new hi-tech system â€“ which analyses telephone calls from claimants for signs of stress in their voices â€“ is being run by Southwark Council in south London.
Council bosses have defended its use, saying the town hall is the 13th worst hit by Government cuts and therefore has to take a tough line on fraud.
Lie detectors were trialled by former Work and Pensions Secretary John Hutton four years ago with 24 councils across Britain. Then, two years ago, the Government abandoned the detector tests after the trials suggested they were unreliable.
But insurance companies still use the technology to catch criminals.