Rome Statute of the International Criminal Court PART 5. INVESTIGATION AND PROSECUTION Article 53 Initiation of an investigation 1. The Prosecutor shall, having evaluated the information made available to him or her, initiate an investigation unless he or she determines that there is no reasonable basis to proceed under this Statute. In deciding whether to initiate an investigation, the Prosecutor shall consider whether: (a) The information available to the Prosecutor provides a reasonable basis to believe that a crime within the jurisdiction of the Court has been or is being committed; (b) The case is or would be admissible under article 17; and (c) Taking into account the gravity of the crime and the interests of victims, there are nonetheless substantial reasons to believe that an investigation would not serve the interests of justice. If the Prosecutor determines that there is no reasonable basis to proceed and his or her determination is based solely on subparagraph (c) above, he or she shall inform the Pre-Trial Chamber. 2. If, upon investigation, the Prosecutor concludes that there is not a sufficient basis for a prosecution because: (a) There is not a sufficient legal or factual basis to seek a warrant or summons under article 58; (b) The case is inadmissible under article 17; or (c) A prosecution is not in the interests of justice, taking into account all the circumstances, including the gravity of the crime, the interests of victims and the age or infirmity of the alleged perpetrator, and his or her role in the alleged crime; the Prosecutor shall inform the Pre-Trial Chamber and the State making a referral under article 14 or the Security Council in a case under article 13, paragraph (b), of his or her conclusion and the reasons for the conclusion. 3. 4. (a) At the request of the State making a referral under article 14 or the Security Council under article 13, paragraph (b), the Pre-Trial Chamber may review a decision of the Prosecutor under paragraph 1 or 2 not to proceed and may request the Prosecutor to reconsider that decision. (b) In addition, the Pre-Trial Chamber may, on its own initiative, review a decision of the Prosecutor not to proceed if it is based solely on paragraph 1 (c) or 2 (c). In such a case, the decision of the Prosecutor shall be effective only if confirmed by the Pre-Trial Chamber. The Prosecutor may, at any time, reconsider a decision whether to initiate an investigation or prosecution based on new facts or information. 33