R v Swaffield

Facts

In two conjoined appeals, Swaffield made admissions to an undercover police officer about arson offences after police had decided not to question him further, while Pavic made admissions in a covertly recorded conversation with a friend acting at police direction after he had been interviewed and released. In each case the admissions were obtained without the accused being cautioned and in circumstances that circumvented the ordinary protections attending police questioning. Both accused challenged the admissibility of the confessional evidence at trial.

Issues

1. Whether the common law discretion to exclude confessional evidence extends beyond the traditional voluntariness rule and the fairness discretion to a separate public-policy discretion concerned with the integrity of the criminal justice system. 2. Whether the trial judge erred in admitting the covertly obtained admissions in each appeal. 3. The correct relationship and scope of the voluntariness rule, the fairness discretion, and the public-policy discretion in Australian law.

Holding

The High Court held, by majority, that Australian common law recognises a public-policy discretion to exclude confessional evidence — distinct from the voluntariness rule and the fairness discretion — where its admission would bring the administration of justice into disrepute. Applying that framework, the appeal of Swaffield was allowed and a new trial ordered, while the appeal of Pavic was dismissed.

Ratio decidendi

At common law, a trial judge has a discretion to exclude an involuntary confession under the voluntariness rule, a discretion to exclude a voluntary confession that was obtained unfairly to the accused, and a further public-policy discretion to exclude confessional evidence whose admission would, in all the circumstances, bring the administration of justice into disrepute by reason of the improper or unlawful conduct by which it was obtained; each discretion is distinct and is to be exercised by reference to its own governing considerations.

Obiter dicta

Several members of the Court discussed the relationship between the emerging public-policy discretion and the since-enacted uniform evidence legislation, noting that the discretion reflects values of reliability, fairness and systemic integrity and that covert elicitation of admissions after a decision to cease questioning may engage all three considerations. The majority also observed that the voluntariness rule is concerned with reliability and the protection of the will of the accused, while the public-policy discretion looks outward to the repute of the justice system rather than inward to the accused's position alone.

Significance

R v Swaffield; Pavic v The Queen is the leading High Court authority establishing the tripartite structure of the common law confession discretions in Australia — voluntariness, fairness, and public policy — and remains the foundational reference point for the admissibility of covertly obtained admissions in jurisdictions not governed by the uniform Evidence Acts.

Key authorities

• Wendo v The Queen Wendo v The Queen (1963) 109 CLR 559considered
• McDermott v The King McDermott v The King (1948) 76 CLR 501considered
• MacPherson v The Queen MacPherson v The Queen (1981) 147 CLR 512considered
• Cleland v The Queen Cleland v The Queen (1982) 151 CLR 1applied
• Foster v The Queen Foster v The Queen (1993) 113 ALR 1considered
• R v Ireland R v Ireland (1970) 126 CLR 321considered
• Pollard v The Queen Pollard v The Queen (1992) 176 CLR 177considered
• R v Sang R v Sang [1980] AC 402distinguished