Canada

Canadian federal law requires one-party consent for telephone call recording. Please refer to provincial laws for more information.

It is sometimes legal to record somebody's conversation without his consent in case of a crime. In Canada, illegally obtained evidence is never automatically excluded. Rather, if someone's rights have been violated, the evidence shall only be excluded "where it would bring the administration of justice into disrepute" (Canadian Charter of Rights and Freedoms). So each illegally obtained wiretap would be considered individually.