The Regional Municipality of York sought certiorari to quash a disclosure order made by a justice of the peace, which required the prosecutor to disclose a user's manual outlining testing procedures for a Genesis Handheld Directional traffic radar device in a speeding case.
The court found that the York Regional Police and the provincial prosecutor are not a single Crown entity for disclosure purposes, and certiorari was an available remedy as the order affected the prosecutor's legal rights on a final basis.
The court held that the testing procedures were not "fruits of the investigation" under the Stinchcombe first-party disclosure regime but rather a third-party record, and therefore the justice of the peace erred in ordering the prosecutor to disclose it.
The application for certiorari was allowed, and the disclosure order was quashed.