Sec. 73c (1) of the Defence Act 1903-1939 (so far as material)
provides that any contractor, purveyor or other person, and any
employee of a contractor, purveyor or other person, who fraudulently
supplies to the Commonwealth or any officer of the Commonwealth
for use by the Defence Force any article of food which is inferior in
quality to or less in quantity than that specified in the contract,
agreement or order under which it is to be supplied shall be guilty
of an offence. The Defence Act 1903-1939 was amended by the
Defence Act, No. 4 of 1941, which was assented to on 4th April
1941. Sec. 3 of the Defence Act 1941 amended sec. 73c (1) of the
principal Act by omitting the word "fraudulently " wherever
occurring and by adding at the end of sub-sec. 1 the words " unless
he proves that he supplied the article . . . without intent to
defraud and that he neither knew nor had reasonable means of know-
ing that the article was so inferior or less in quantity." Sec. 4 of
the Defence Act 1941 added a new section, 73m, which, so far as
material, is in the following terms : - '' Where a person to whom
section seventy-three c or section seventy-three p of this Act applies
is a body corporate, the body and every person being a director or
a person concerned in the management of the body shall, in respect
of any act or fact specified in either of those sections, be guilty of
an offence unless - . . . (6) in the case of a person being a
director or person concerned in the management of the body, he
proves - (i) that the act or fact took place or existed without his
knowledge; and (ii) that he did not have reasonable means of
preventing the act or fact taking place or coming into existence."
Sec. 2 of the Defence Act 1941 provides that secs. 3 and 4 of that Act
shall be deemed to have come into operation on 3rd September
1939, so that sec. 73c (1) of the principal Act, as amended by sec. 3
of the Defence Act 1941 and sec. 73H of the latter Act, by clear and