Police: Lie Detectors
2026-07-20 · Home Office · HL2373 · Official question
Question
To ask His Majesty's Government what national standards, governance processes and safeguards are in place regarding the use of polygraph tests by police forces.
Answer
The Home Office does not centrally collect data on the number of police forces using polygraph tests, the frequency of their use, or their application in specific investigation types. Police forces are operationally independent of Government, and it is fo...