Customs And Excise Investigation (Gibraltar) Mr. Roy Hughes asked the Chancellor of the Exchequer what investigation has taken place in Gibraltar by Her Majesty's Customs and Excise (Investigation Branch) into the invoicing practices of a firm whose name has been supplied to him; what was the outcome of the investigation; what fines were imposed; and if he will make a statement. Mr. Higgins Details of Customs and Excise inquiries are treated as confidential.