The police entered the respondent's house to enforce a noise by-law after being invited in by her guests.
The respondent subsequently requested that the police leave, revoking the invitation.
The police refused to leave and arrested the respondent for obstructing a police officer.
The Supreme Court of Canada dismissed the Crown's appeal, agreeing with the lower courts that the revocation of the invitation made the police's continued presence and the subsequent arrest unlawful.
