Columbia subject headings:
Eavesdropping--Canada.
Wiretapping--Law and legislation--Canada.
Harvard subject headings:
Eavesdropping--Canada.
Electronic surveillance--Canada.
Privacy, Right of--Canada
Searches and seizures--Canada.
Wiretapping--Canada.
Princeton subject headings:
Eavesdropping--Canada.
Electronic surveillance--Canada.
Privacy, Right of--Canada.
Searches and seizures--Canada.
Wiretapping--Canada.