The Rome Statute of the International Criminal Court:

- reflects customary international law 
- defines deportation or forcible transfer of population as "forced displacement of the persons concerned by expulsion or other coercive acts from the area in which they are lawfully present, without grounds permitted under international law".
- defines as a war crime in Article 8(2)(b)(viii) "the deportation or transfer of all or parts of the population of the occupied territory within or outside this territory" by the occupying power.
- stipulates that the deportation or forcible transfer of population would also constitute a crime against humanity, when carried out in a widespread or systematic way, as part of a governmental policy. (Article 7 (d)).