The 14-year-old accused was charged with second degree murder as a party to a fatal stabbing.
The Crown sought his detention under the Youth Criminal Justice Act.
The court found that while the accused had no prior record, there was a substantial likelihood he would commit a serious offence if released, given a recent history of severe, uncharged violence against his mother.
The court concluded that no conditions of release, including house arrest with sureties, would adequately protect the public.
The court also declined to place the accused with a responsible person under section 31 of the YCJA, finding the proposed persons unable to exercise sufficient control over him.
Detention was ordered.