Question to the Home Office:
To ask Her Majesty's Government whether they have benchmarked the way that that the list of those selected for enhanced security checks by US Homeland Security at UK sites is compiled; and whether they have compared this with any other countries in which US Homeland Security has the right to require such checks in their sovereign territory.
Further to the answer at HL6289 and HL6290 the CBP officers hold no authority in the UK, conduct no formal checks and can only advise airline staff. The decision whether or not to board a passenger rests with the airline. The last recorded complaint was in 2016.
We do not publish the specific details of the arrangement with the Department of Homeland Security for operational reasons.