Attorney-General (NSW) v Martin

The Attorney-General of New South Wales appealed to the High Court of Australia from a decision of the Supreme Court of New South Wales, which had quashed the conviction of the respondent, Martin. The dispute concerned the admissibility of a written statement made by Martin to a constable after his arrest for wounding with intent to murder. The Supreme Court, by majority, had held the statement inadmissible, leading to the Crown's appeal.

The central legal issue before the High Court was the interpretation and application of section 410 of the *Crimes Act 1900* (NSW). Specifically, the court had to determine whether the section applied to exculpatory statements, and if so, what onus rested on the Crown to prove the voluntariness of such statements, particularly when the circumstances surrounding their making were not fully disclosed. The court also considered the common law rules regarding the admissibility of confessions and statements made by accused persons.

A majority of the High Court, comprising Griffith CJ, Barton and O'Connor JJ, held that the statement was a "statement" within the meaning of section 410. They reasoned that the Crown was not required to prove by positive affirmative evidence that the statement was voluntarily made, as there was nothing in the circumstances to suggest it was induced by any untrue representation, threat, or promise. Therefore, the statement was admissible. Isaacs J, dissenting, considered the statement to be purely exculpatory and thus not a "statement" under section 410. However, he agreed that if it were considered a confession, it would not have been admissible due to the Crown's failure to affirmatively prove its voluntariness.

The High Court, by majority, reversed the decision of the Supreme Court and restored the conviction. The appeal was allowed.