Treason (Earth-2356)

Treason, also known as treachery, is criminal action against a legitimately recognized government, organization, or someone who served that government or organization. In the Galactic Empire, the definition of treason is such that merely speaking against the Empire or its policies was sufficient to place one under arrest, often without trial or other due process. "Traitor" is the formal term for an individual that had committed treason.

Source

 * https://starwars.fandom.com/wiki/Treason