North Yorkshire Police says it has used polygraphs 87 times since October 2020.
The tests measure how a person's heart rate, blood pressure, breathing and sweating change in reaction to questioningDet Supt Heather Whorriskey of North Yorkshire Police said polygraphs had been used 87 times since the equipment was introduced in October 2020.
, Det Supt Whorriskey was appearing at a public accountability meeting of the North Yorkshire Police, Fire and Crime Commissioner on Thursday. "It's used quite significantly whenever offenders are using communication devices to assess whether or not they have engaged in further communication with children. We're able to use that to prioritise those devices for examination within our digital forensic unit.
They were introduced in 2014 by the Home Office to monitor convicted sex offenders as part of their release on licence.
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