A communication to the International Criminal Court is the equivalent of a criminal complaint to the court on an alleged crime falling under the court’s jurisdiction. A preliminary examination is carried out before any formal investigation is opened. The court will consider, among other things, if any genuine investigations or prosecutions are underway in the country in question and whether the potential crimes meets the gravity threshold for the ICC to intervene.
The ICC has jurisdiction over crimes of genocide, crimes against humanity and, as of July 2018, the crime of aggression. The ICC has received more than 10,000 communications since its establishment in 2002.