Question to the Ministry of Defence:

To ask the Secretary of State for Defence, what regulations there are to enforce rules on the wearing of non-British approved orders with military uniform when representing Her Majesty the Queen and the Government on official business; and what sanctions exist when those rules and regulations are violated.

Regulations on the acceptance and wear of foreign medals and decorations are laid down in the appropriate Joint Service Publication, and echoed in the single-Service regulations, which are enforceable under Service discipline. It would be a matter for the Chain of Command to ensure compliance with the regulations.