The three next following subsections shall apply in relation to a ship or aircraft inward bound carrying any postal packets within the exclusive privilege of the F2Post Office, not being packets to which the next following section applies.

The master of the ship or commander of the aircraft shall collect all such postal packets on board his ship or aircraft and enclose them in some bag or other covering sealed with his seal and addressed to the F2Post Office and shall without delay deliver them to the proper F3person engaged in the business of the Post Office demanding them or, if no demand is made by that F3person, then at the post office with which he can first communicate.

If the master of the ship or the commander of the aircraft does not duly comply with the provisions of the last foregoing subsection he shall be liable on summary conviction to a fine not exceeding F4level 4 on the standard scale.

The master of the ship or commander of the aircraft shall not break bulk on board his ship or aircraft in any port or place before he has complied with the provisions of subsection (2) of this section and if he does so he shall be liable on summary conviction to a fine not exceeding F5level 2 on the standard scale.

An officer of customs and excise may refuse to permit bulk to be broken on board any inward bound ship or aircraft until he is satisfied that any postal packets brought in that ship or aircraft which are required to be delivered under subsection (2) of this section have been so delivered.

An officer of customs and excise may search any inward bound ship or aircraft for, and seize, any postal packets within the exclusive privilege of the F2Post Office and forward any such packets seized to the nearest post office; and subsection (3) of section eight of this Act shall apply in relation to any packet so forwarded.