The appellants, Derek Oppong and Akido Thomas, appealed their convictions and sentences for kidnapping-related offences with a firearm, committed for the benefit of a criminal organization.
They argued the trial judge erred in admitting expert evidence on gang activity, claiming it was unnecessary and biased, and in refusing to reconsider its admissibility after proposed factual admissions.
The Court of Appeal dismissed both conviction and sentence appeals, affirming the trial judge's discretion in admitting expert evidence for contextual understanding and finding no material change in circumstances that would warrant its exclusion.
The court also upheld Mr. Oppong's sentence, finding evidence supported his leadership role in the offence.