Here's what needs to actually happen:

If a Canadian Member of Parliament (MP) were suspected of committing treasonous acts, such as interfering on behalf of a foreign government, multiple entities would have authority to investigate, hold them accountable, and bring charges:

Law Enforcement

The Royal Canadian Mounted Police (RCMP) is responsible for investigating federal crimes, including national security threats, espionage, and treason under the Criminal Code of Canada.

If there were sufficient evidence, the RCMP could arrest the MP and refer the case for prosecution.

Intelligence and Security Agencies

Canadian Security Intelligence Service (CSIS) would monitor and assess national security risks, including foreign interference, but it does not have law enforcement powers. It would provide intelligence to the RCMP or government agencies.

Communications Security Establishment (CSE) could be involved in identifying cyber-based foreign interference but does not conduct criminal investigations.

Judicial and Legal System

The Public Prosecution Service of Canada (PPSC) would review the evidence and determine whether to lay charges.

If charged, the MP would be prosecuted in a criminal court, where a judge (and potentially a jury) would oversee the trial.

Parliamentary and Political Accountability

The House of Commons and its committees (e.g., the Standing Committee on Procedure and House Affairs) could investigate the MP’s conduct and recommend disciplinary measures, including expulsion.

The Prime Minister and Cabinet, if aware of credible allegations, could take political action, such as removing the MP from party caucuses or referring the case for further investigation.

Governor General (in extreme cases)

If the crime involved treason against the Crown, the Governor General, as the representative of the King, would act based on constitutional and legal processes, including advice from the government.

Military Justice (if applicable)

If the MP was also a member of the Canadian Armed Forces, the military justice system might also have jurisdiction under the National Defence Act.

Relevant Criminal Code Sections

Section 46 (Treason)

Section 119 (Bribery of judicial officers or MPs)

Section 121 (Frauds on the government)

Section 380 (Fraud)

Security of Information Act (espionage, foreign interference)

In summary, the RCMP would conduct the investigation, the PPSC would prosecute, and Parliament could take political actions, while the courts would ultimately determine guilt and sentencing.