The accused was charged with possession of cocaine for the purpose of trafficking.
He brought a Charter application seeking to exclude evidence seized during a warrantless search of his person and vehicle, arguing that his arrest was unlawful and arbitrary.
The arresting officer relied on a confidential informant's tip, police surveillance, and the accused's criminal record to form reasonable and probable grounds for the arrest.
However, the officer knew or ought to have known that the accused's prior convictions had been overturned on appeal.
The court found that the officer lacked objective reasonable and probable grounds to arrest the accused, rendering the arrest arbitrary under s. 9 of the Charter and the subsequent search unreasonable under s. 8.
Applying the Grant framework, the court concluded that the police misconduct was serious and deliberate, and that admitting the evidence would bring the administration of justice into disrepute.
The evidence was excluded under s. 24(2).