The appellant Crown appealed from a decision of the Saskatchewan Court of Appeal which quashed the respondent's convictions for firearms offences and possession of identity documents, holding that his arrest for simple possession of a controlled substance was unlawful because s. 4.1(2) of the Controlled Drugs and Substances Act — the Good Samaritan Drug Overdose Act exemption — precluded charge and conviction and, by necessary implication, arrest for that offence.
The majority held that Parliament's purpose in enacting s. 4.1(2) was to save lives by removing disincentives to calling emergency services at the scene of a drug overdose, and that immunity from arrest is necessarily implied by the immunity from charge and conviction, since arrest and the searches incident to it would otherwise substantially undermine that legislative purpose.
The majority further held that the s. 4.1(2) immunity does not affect other existing police powers at the scene of an overdose, and that the evidence discovered through a search incident to the unlawful arrest must be excluded under s. 24(2) of the Charter.
The dissent concluded that the text, context, and purpose of s. 4.1(2) limit the exemption to charge and conviction only, and that the police did not infringe ss. 8 or 9 of the Charter.