It is a defence to a
charge under section 9 or 10 in a case where a permit was not in effect
because it was suspended under section 35 for the accused to prove that at the
time of the alleged offence the accused —
(a) was
not aware that an event mentioned in section 35(a) or (b) had occurred in
relation to the permit; and
(b)
could not reasonably be expected to have known that the event had occurred.