Unfortunately, British authorities continue using “technology” supposed to carry out “voice risk analyses” (VRA):
http://www.theguardian.com/society/2014/mar/10/councils-use-lie-detector-tests-benefits-fraudsters
It is amazing that public funds keep on being diverted to pseudo-scientific devices in the UK. It is good that “No one is going to be prosecuted for benefit fraud on the result of voice analysis tests alone” but stopping these pseudo analyses would save both money and the authorities’ credibility…

For a short discussion of this type of voice analyses (VRA and LVA, two different types of questionable working principles) see
http://su.diva-portal.org/smash/record.jsf?searchId=1&pid=diva2:687257