Related Rule
Guatemala
Practice Relating to Rule 101. The Principle of Legality
Guatemala’s Law on the Protection of Childhood and Adolescence (2003) states: “Principle of legality. No adolescent may be prosecuted for acts which do not violate criminal law. He or she may not be prosecuted nor subjected to [disciplinary] measures or [penal] sanctions which were not previously established by law.” 
Guatemala, Law on the Protection of Childhood and Adolescence, 2003, Article 145.