A report has found that border officials at Birmingham Airport could have been carrying out illegal bag searches, without the passengers' knowledge.
It said: "Despite the fact that the current Border Force enforcement handbook guidance prohibited this activity, staff confirmed they were carrying out covert baggage searches."
A Border Force spokesman said:
Searching baggage, including when the owner is not present, is a legal and proportionate response to this issue. Any such searches must be authorised by a senior officer.
We have already taken action on the recommendations the Chief Inspector made in his report.
More top news
Two pilots have been arrested on suspicion of being under the influence of alcohol as they prepared to fly from Scotland to the New York.
Two teenagers have been arrested on suspicion of drugs offences following the death of a 17-year-old youth who collapsed at Leeds Festival.
Theresa May will gather Cabinet ministers together on Wednesday to discuss her plans for Brexit.