(1) It is a sufficient defence to a prosecution of a manager of club premises
for an offence under this Act or the regulations (including any offence for
which the manager is liable because of section 91 or 149) if it is proved
that--
(a) the manager had taken all reasonable precautions to avoid
commission of the alleged offence, and
(b) at the time of the alleged offence
the manager did not know, and could not reasonably be expected to have known,
that the alleged offence had been committed.
(2) However, subsection (1) does
not apply in relation to any of the following offences--