Соответствующая норма
Chad
Practice Relating to Rule 101. The Principle of Legality
In 1997, in its initial report to the Committee on the Rights of the Child, Chad stated: “In the criminal sphere, articles 22–25 of the Constitution specify that … [n]o one may be arrested or charged except by virtue of a law promulgated prior to the acts of which he is accused.” 
Chad, Initial report to the Committee on the Rights of the Child, 24 July 1997, UN Doc. CRC/C/3/Add.50, submitted 14 January 1997, § 91.