Police stopped and detained a person matching the description of a recent break-and-enter suspect, conducted a protective pat-down, and then reached into his pocket and found marijuana, leading to a trafficking prosecution.
The Supreme Court recognized a limited common law power of investigative detention where police have reasonable grounds to suspect a connection to a particular crime and detention is reasonably necessary, together with a limited protective pat-down search power grounded in officer safety.
The Court held, however, that the more intrusive pocket search was not justified on the facts and violated s. 8 of the Charter.
Applying the s. 24(2) exclusion analysis, the Court excluded the non-conscriptive evidence because the unjustified search represented a serious breach and admission would bring the administration of justice into disrepute.
The appeal was allowed and the acquittal restored.