Background
In 2019, Ontario police investigated Christopher Janisse for drug trafficking. Officers obtained a tracking warrant on June 6, 2019, placed a device on his vehicle, and through subsequent surveillance obtained two general warrants. One warrant authorized covert entry into a condominium unit at 105 The Queensway in Toronto. Between June 4 and June 27, Janisse was observed accessing the unit 12 times — always alone — carrying backpacks and bags, and taking deliberate routes through stairwells to avoid direct access. When police first entered the unit on June 19, they discovered two floor safes containing nearly 9.7 kg of cocaine, almost 2 kg of fentanyl, 36 grams of crystal methamphetamine, drug paraphernalia, and ammunition. Janisse was arrested in the unit on June 27 while handling cocaine bricks; police seized 15 kg of cocaine, 2 kg of fentanyl, and $96,920 in cash from a hidden compartment in his car.
At trial, Janisse challenged the tracking warrant under ss. 8 and 24(2) of the Canadian Charter of Rights and Freedoms, arguing the Information to Obtain (ITO) was deficient and that any evidence derived from it — including the subsequent general warrants — should be excluded. The trial judge dismissed the application. On the basis of an agreed statement of facts, Janisse was convicted on April 26, 2022 of possession for the purpose of trafficking and possession of proceeds of crime.
Following conviction, Janisse learned that in a related proceeding — R. v. Downes, 2022 ONSC 4308 — Justice Nakatsuru had found that Detective Constable John De Sousa, a sub-affiant common to both investigations, had deliberately misled the issuing justice about surveillance observations and had failed to preserve CCTV footage that would have contradicted his account. Evidence against Downes was excluded on that basis. Janisse applied to reopen his trial, arguing the Downes ruling constituted fresh evidence of police misconduct warranting a new Charter challenge to the general warrant used against him. The trial judge dismissed the application on October 4, 2022, and Janisse appealed.
The Court’s Holding
The Court of Appeal, per Miller, Dawe, and Wilson JJ.A., unanimously dismissed the appeal. The court found that the trial judge committed no error in refusing to reopen the proceedings. The misconduct identified in Downes was tied to De Sousa’s observations about a parking garage meeting between Downes and Janisse — observations that Janisse himself had admitted to be substantially accurate through his agreed statement of facts at trial. Because Janisse never directly challenged the general warrant (only the tracking warrant), the fresh evidence from the Downes proceeding did not touch the grounds actually litigated and could not have affected the outcome. The court drew an express parallel to Justice Nakatsuru’s own reasoning: just as Downes’s co-accused Medeiros could not “hitch his wagon” to the misconduct finding because it did not bear on the warrants he challenged, Janisse likewise could not leverage a finding that had no bearing on his trial strategy.
The court also held that the first Palmer criterion for admitting fresh evidence was not satisfied: Palmer v. The Queen, [1980] 1 S.C.R. 759. The fresh evidence was not Justice Nakatsuru’s conclusions, but the underlying testimony of D.C. De Sousa himself — evidence Janisse could have adduced through cross-examination at his own trial, exercising due diligence. Moreover, given that Janisse had admitted the substance of De Sousa’s account of the parking garage encounter, neither the officer’s evidence nor the credibility findings against him would have carried significant probative value in Janisse’s case. The decision not to reopen was a reasonable and proper exercise of judicial discretion. The sentence appeal was dismissed as abandoned.
Key Takeaways
- A finding of police misconduct in a related proceeding does not automatically entitle a convicted co-accused to reopen their trial; the misconduct must be relevant to the specific grounds litigated in the applicant’s own case.
- Fresh evidence will not be admitted on a reopening application if it could have been obtained and adduced through the exercise of due diligence at the original trial — the first Palmer criterion is not merely a formality.
- An accused who admits the substance of a police officer’s contested observations forfeits much of the probative value of a subsequent credibility finding against that officer in a different proceeding.
- The decision to reopen a trial is a discretionary one; appellate courts will not interfere where the trial judge’s reasoning is sound and grounded in the actual trial record.
Why It Matters
This decision reinforces a meaningful limitation on the use of findings from related proceedings as a vehicle to relitigate settled Charter issues. Defence counsel cannot simply invoke a misconduct ruling from a companion case to obtain a second bite at the evidentiary apple, particularly where the trial strategy employed did not put the relevant police conduct in issue. The court’s reasoning signals that the integrity of the trial process cuts both ways: just as systemic police misconduct warrants serious remedy, so too does the principle that convictions reached after full adversarial proceedings should not be unwound based on collateral findings that were always available to the defence.
For practitioners, the case is a useful reminder to pursue all available avenues of Charter challenge at the original hearing rather than banking on subsequent proceedings in related cases. The Palmer due-diligence requirement retains real teeth: if the underlying evidence was accessible, the fact that another court later drew dramatic conclusions from it does not excuse a failure to pursue it the first time around.