H. Van Drunen

The accused brought a pre‑trial application seeking exclusion of evidence relating to firing‑pin indentations on three cartridges recovered from the scene of an alleged robbery and attempted murder.

Police had test‑fired two of the cartridges during the investigation, which obliterated the original firing‑pin impressions and prevented later forensic comparison with a handgun recovered a year later.

The accused argued that the loss of the original impressions constituted unacceptable negligence and breached their right to make full answer and defence under s. 7 of the Charter, warranting exclusion of the evidence.

The court found that the police conduct amounted to unacceptable negligence and therefore constituted a breach of s. 7.

However, the court held that exclusion of the evidence was not an appropriate remedy because the potential prejudice was speculative and could be addressed through cross‑examination and a jury instruction regarding the Crown’s failure to preserve evidence.

In pre‑trial rulings in a prosecution for robbery with a firearm, attempted murder, and drug trafficking offences arising from an alleged drug rip‑off, the Crown sought to admit extrinsic evidence including photographs of firearms found on an accused’s cellphone and text messages relating to a marijuana transaction.

The court applied the similar fact evidence framework and held that the probative value of the firearm photographs was weak and outweighed by their prejudicial effect because they did not establish possession, access, or connection to the charged offences.

Text messages with a third party discussing a marijuana purchase were also excluded because they risked reasoning prejudice and did not sufficiently support the Crown’s theory of organized drug rip‑offs.

However, the court granted the Crown’s application to qualify a police officer as an expert in firearm identification and coded or street language relating to firearms and vehicles, finding the opinion evidence relevant, necessary, and admissible under the Mohan and Abbey framework.