How does the Prosecutor decide where to intervene and which crimes to prosecute?

Beyond geographic and temporal jurisdiction as defined under the Rome Statute, the main criterion is gravity. Although any crime within the jurisdiction of the Court is a serious matter, the Statute clearly requires an additional consideration of gravity to determine that a case justifies further action by the Court. In assessing gravity, factors include: the scale of the crimes; their nature; the manner they were committed; and their impact