The defence applied to exclude evidence of prior discreditable conduct, known as the "Austin incident," in a murder and aggravated assault trial involving Tyrone Chambers and Joshua Warner.
The Austin incident, a minor assault accompanied by a threat to shoot, occurred shortly before the main shootings.
The defence argued its prejudicial effect outweighed its probative value.
The Crown contended the incident was relevant to the accused's knowledge of each other's gun possession, their willingness to back each other up, and the overall narrative of the night's events, forming part of a continuing transaction.
Applying the R. v. Handy test for similar fact evidence, the court treated the Austin incident as prior discreditable conduct but found its high probative value, particularly concerning narrative, the accused's knowledge and state of mind, Section 21 party liability, and self-defence, greatly outweighed the limited moral and reasoning prejudice.
The court ruled the evidence admissible.