Borders, Citizenship and Immigration Bill [Lords]

May I raise with the Home Secretary my dismay when arriving at Belfast city airport on parliamentary business on 29 March? A person there who subsequently identified himself as a member of the UK Border Agency, without credentials, used a security firm to demand identity and passports from people on a domestic flight. Officials, not the airline operator, did that. It is an abuse of power, and those officials need their knuckles rapped to ensure that they wear credentials and have a mandate from Parliament to make such demands. Is that endemic and widespread internally in the United Kingdom?