a power of the Commissioners is exercisable by the Director General, a reference to the Commissioners in any enactment which relates to that power is to be taken to be, or to include, a reference to the Director General;

a power or privilege of a constable is exercisable by any NCA officer, a reference to a constable in any enactment which relates to that power or privilege is to be taken to be, or to include, a reference to any NCA officer by whom that power or privilege is exercisable;

a power of an officer of Revenue and Customs is exercisable by any NCA officer, a reference to an officer of Revenue and Customs in any enactment which relates to that power is to be taken to be, or to include, a reference to any NCA officer by whom that power is exercisable;

a power of a general customs official is exercisable by any NCA officer, a reference to a general customs official in any enactment which relates to that power is to be taken to be, or to include, a reference to any NCA officer by whom that power is exercisable;

a power of an immigration officer is exercisable by any NCA officer, a reference to an immigration officer in any enactment which relates to that power is to be taken to be, or to include, a reference to any NCA officer by whom that power is exercisable.