Related Rule
Belgium
Practice Related to Rule 94. Slavery and Slave Trade
Belgium’s Penal Code (1867), as amended in 2003, provides:
A crime against humanity, as defined below, whether committed in time of peace or in time of war, constitutes a crime under international law and shall be punished in accordance with the provisions of the present title. In accordance with the Statute of the International Criminal Court, crime against humanity means any of the following acts when committed as part of a widespread or systematic attack directed against any civilian population, with knowledge of the attack:
3. enslavement. 
Belgium, Penal Code, 1867, as amended on 5 August 2003, Chapter III, Title I bis, Article 136 ter, § 3.
Belgium’s Law concerning the Repression of Grave Breaches of the Geneva Conventions and their Additional Protocols (1993), as amended in 1999, provides that enslavement constitutes a crime under international law. 
Belgium, Law concerning the Repression of Grave Breaches of the Geneva Conventions and their Additional Protocols, 1993, as amended in 1999, Article 1(2)(3).
Belgium’s Law relating to the Repression of Grave Breaches of International Humanitarian Law (1993), as amended in 2003, provides:
A crime against humanity, as defined below, whether committed in time of peace or in time of war, constitutes a crime under international law and shall be punished in accordance with the provisions of the present title. In accordance with the Statute of the International Criminal Court, crime against humanity means any of the following acts when committed as part of a widespread or systematic attack directed against any civilian population, with knowledge of the attack:
3. enslavement. 
Belgium, Law relating to the Repression of Grave Breaches of International Humanitarian Law, 1993, as amended on 23 April 2003, Article 1 bis, § 3.