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.