Question to the Home Office:

To ask Her Majesty's Government whether they have received complaints about how the United States Department of Homeland Security conducts the selection of travellers for additional security checks by and on behalf of United States authorities; and if so, how many complaints they have received.

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We do not publish the specific details of the arrangement with the Department of Homeland Security for operational reasons.