Section 2 Exemptions from s. 1.

Section 1 of this Act shall not be taken to be contravened by anything done, or attempted to be done, by any person in accordance with a permit issued in respect of him—

if it is done or attempted at a time when that permit is in force and in compliance with any conditions or limitations to which the permit is subject.

Without prejudice to the preceding subsection, where a person is charged with an offence under section 1 of this Act, it shall be a defence to prove that the act in question was done or attempted in a case of extreme emergency involving possible loss of human life or the safety of a ship or aircraft.