“it does not matter whether employment arises or work is carried out within or outside the United Kingdom” (section 81(2)); a “seafarer” is “a person employed or engaged in any capacity on board a ship or hovercraft (section 81(5)). Mr de Silva pointed to instances from Bennion on Statutory Interpretation , 7 th edition, at pp. 527-530 where in other contexts the tense used was decisive of the meaning of a provision. (3) The explanatory notes to section 81 refer to the Act being generally silent on territorial application, which is not adequate for seafarers who “work on ships” (in the present tense) “that may be constantly moving between waters …”