High treason

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Treason is criminal disloyalty. Historically, in common law countries, high treason is treason against the state. It was differentiated from petty treason (or petit treason), which was treason against a lesser lawful superior (such as a servant killing his master). Petty treason was restricted to cases of homicide in 1351, and came to be considered a more serious degree of murder.

As common law jurisdictions around the world abolished petty treason, the concept of high treason gradually faded, and today use of the word "treason" generally refers to what was historically known as high treason. In Canadian law, however, there are still two separate offences of treason and high treason, but both of these, in fact, fall in the historical category of high treason.[1] In Canada, the main difference in law between treason and high treason depends on whether the nation is at war. In addition, high treason in Canada also includes any bodily harm towards the Canadian Head of State.[2] In nations without a common law legal system, the distinction between high and petty treason did not exist.

High treason is criminal disloyalty to one's government. Participating in a war against one's native country, attempting to overthrow its government, spying on its military, its diplomats, or its secret services for a hostile and foreign power, or attempting to kill its head of state are perhaps the best known examples of high treason. High treason requires that the alleged traitor have obligations of loyalty in the state he or she betrayed, but this will usually be satisfied by being present in the state at the time of the offence, or being a citizen of the state if abroad. Foreign spies, assassins, and saboteurs, though not suffering the dishonor associated with conviction for high treason, may still be tried and punished judicially for acts of espionage, assassination, or sabotage, though in contemporary times, foreign spies are usually repatriated in exchange for spies of the mentioned nation held by another nation.[3] High treason is considered a very serious – often the most serious possible – crime, by the civil authorities. Originally it was punished by hanging, drawing and quartering. A conviction by a Canadian court for high treason results in a mandatory life sentence.[4]

Until the 19th century, counterfeiting coins was considered high treason in the United Kingdom as it was considered to be an act of debasing the currency of The Crown.[5]

See also[edit]


  1. ^ Criminal Code of Canada Archived March 30, 2007, at the Wayback Machine, section 46.
  2. ^ Criminal Code, RSC 1985, c. C – 46, s.46(a)
  3. ^ Cf. "U.S., Russia reach deal on exchanging spies". The Washington Post. July 9, 2010. Retrieved April 2, 2013. and many similar reports
  4. ^ Gold, Samantha (February 28, 2017). "TREASON: A Crash Course on the Gravest National Crime". Forget the Box Media. Retrieved January 28, 2019. A conviction for high treason carries the penalty of life in prison.
  5. ^ Treason Act 1351; Coinage Act 1832