In this Act—

• . . . F1

• The term “officer” means a commissioned, . . . F2 officer, . . . F2, in Her Majesty’s naval or marine force:

• The term “seaman or marine” means a F3warrant officer petty officer or seaman, F3warrant or non-commissioned officer of marines, or marine, or other person forming part in any capacity of the complement of any of Her Majesty’s vessels, or otherwise belonging to Her Majesty’s naval or marine force (not being an officer within the meaning of this Act).