The accused were investigated by the CRA for tax evasion and fraud after a referral from the RCMP.
The trial judge found that the CRA auditor was conducting a criminal investigation from the outset, violating section 8 of the Charter by using regulatory inspection powers.
The trial judge quashed the search warrants, excluded the evidence under section 24(2), and awarded costs to the accused.
The Crown appealed.
The Court of Appeal allowed the appeal in part, setting aside the acquittals and ordering a new trial.
The majority held that the auditor's inquiries did not violate section 8, as their predominant purpose was not the determination of penal liability, making that evidence admissible.
The Court unanimously set aside the costs award, finding no exceptional circumstances or Crown misconduct.