MASTER BUTCHERS LIMITED G. LAUGHTON &COOMBS LIMITED
RESPONDENTS. PLAINTIFFS,
ON APPEAL FROM THE SUPREME COURT OF
SOUTH AUSTRALIA. Public Health-Sale of diseased animals-Knowledge that animals are diseased-
Health Act 1898 (S.A.) (61 &62 Vict. No. 711), secs. 106, 109, 111*.
Sec. 109 of the Health Act 1898 (S.A.) provides that " no person shall sell, consign, or expose for sale, or supply for food, any diseased animal." Sec. 106 of the Health Act 1898 pro-
shall (inter alia) supply to any person vides that "all owners, on discovery
the milk of any diseased animal, or that their animals are diseased, shall
allow any person suffering from any give written notice to the Local Board,
infectious disease to milk any cow, and and isolate such animals from all other
continues: " It shall not be a defence to any prosecution under this section defence to any prosecution under this
that the owner did not know that the section that the owner did not know
animal was diseased, or that the person that the animal was diseased unless
was suffering from an infectious disease, he shall also show that it was not
unless he shall also show that it was practicable to discover such disease by
not practicable to discover the fact by the exercise of reasonable diligence." "
the exercise of reasonable diligence." Sec. 111 provides that no person