R. v. Stinchcombe: Involves the Mandate to Disclose All Relevant Evidence | Pollock Paralegal


Last Updated: August 22 2026

Question:In Ontario, does R. v. Stinchcombe require the Crown prosecutor to disclose witness statements they do not plan to call at trial?

Answer:In Ontario, R. v. Stinchcombe, [1991] 3 S.C.R. 326 holds that the Crown prosecutor must disclose all relevant information to the defence, including material the Crown does not intend to call at trial, because disclosure is essential to an accused person’s right to make full answer and defence and to maintain a fair trial.   If you are dealing with a disclosure issue in a criminal matter, Pollock Paralegal can help you understand what information should have been provided and what practical next steps to consider, and you can call (519) 694-0363 to book a free 1/4 hour consultation.

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Decision Summary: R. v. Stinchcombe:

The case of R. v. Stinchcombe, [1991] 3 S.C.R. 326, was a landmark decision in Canadian criminal law rendered by the Supreme Court of Canada.  The case centered around the obligation of the Crown prosecutor to disclose evidence to the defence.  The decision significantly influenced the principles of fair trial and the legal duty of disclosure imposed upon prosecutors.  Key issues include:

Note: Please contact Pollock Paralegal by phone at: (519) 694-0363 to discuss any specific questions that you may have.

  • Obligation to Disclose Evidence:
    The primary legal issue was whether the Crown prosecutor is obliged to disclose all relevant information to the defence, including statements from witnesses that the Crown is without an intention to call to testify at Trial.
  • Impact Upon the Right to a Fair Trial:
    The case highlighted the implications of a failure to disclose evidence upon the ability of an accused person to make full answer and defence as well as stressing the importance of transparency so to ensure a fair trial.
  • Judicial Review of Discretion:
    The case also addressed the role of the trial judge when reviewing the discretion of the Crown prosecutor to withhold evidence perceived as irrelevant and the principles guiding such discretion.
Details and Insights
  • Legal Duty to Disclose:
    The Supreme Court held that the Crown prosecutor must disclose all relevant information to the defence including material that the Crown prosecutor plans to forgo relying upon at trial.
  • Precedent in Canadian Justice System:
    The decision set a precedent ensuring that the accused person can prepare an adequate defence by having access to all pertinent information held by the prosecution.
  • Strategic Legal Approaches:
    The ruling underscored the need for prosecutors to exercise discretion transparently and responsibly.

Gaining an understanding of this case can assist legal professionals and clients navigating similar legal scenarios.  Explore the full case judgment for more detailed information and specific legal arguments.

The official case judgment is available here: R. v. Stinchcombe, [1991] 3 S.C.R. 326

Conclusion

The Stinchcombe case underscores the critical importance of disclosure in ensuring a fair trial within the Canadian legal framework.  The principles articulated in the case decision emphasize the necessity for prosecutors to share all relevant information with the defence thereby promoting fairness and justice.

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