S v Boulton

The matter of S v Boulton was heard in the High Court of Australia. The case involved a dispute over the compellability of a spouse as a witness in a criminal trial, specifically whether a wife could be compelled to testify against her husband. The High Court was asked to determine the legal principles governing the compellability of a spouse in such circumstances, particularly in light of historical common law principles and subsequent statutory changes.

The court needed to decide whether the common law principle that a wife could not be compelled to testify against her husband still applied, or if it had been superseded by statutory provisions that render spouses generally competent and sometimes compellable in criminal cases. The court examined the evolution of the law from the common law position, through legislative changes, and the relevant judicial decisions in both Australian and English courts.

The court found that the common law principle, which protected spouses from being compelled to testify against each other, remained a fundamental principle in criminal proceedings. Despite statutory changes that have made spouses generally competent to testify, the court held that these statutes did not override the well-settled principle that a spouse should not be compelled to testify against their partner in cases of violence. The court referenced historical cases such as Riddle and Leach, as well as the more recent decision in Hoskyn, which reaffirmed the principle that a wife should not be compelled to testify against her husband in cases of domestic violence. The court concluded that the statutory provisions did not alter this fundamental principle, which continues to be of general application and fundamental importance.

The court ordered that the application be dismissed and that the applicant pay the respondents' costs of the application.