It may be that controls in ports and airports are insufficient and the customs allowance set by the Council is frequently exceeded without any controls.

You can get information about banned and restricted goods, and your customs allowances, from HM Revenue and Customs.

C 909 - Declaration of Goods by Aircraft Crews If you are an aircraft crew use form C 909 to declare prohibited or restricted goods or goods in excess of customs allowances when arriving from outside the EU.