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Article 12
Preconditions to the exercise of jurisdiction
1. A State which becomes a Party to this Statute thereby accepts the jurisdiction of the Court with respect to
the crimes referred to in article 5.
2. In the case of article 13, paragraph (a) or (c), the Court may exercise its jurisdiction if one or more of the
following States are Parties to this Statute or have accepted the jurisdiction of the Court in accordance with
paragraph 3:
(a) The State on the territory of which the conduct in question occurred or, if the crime was committed
on board a vessel or aircraft, the State of registration of that vessel or aircraft;
(b) The State of which the person accused of the crime is a national.
3. If the acceptance of a State which is not a Party to this Statute is required under paragraph 2, that State
may, by declaration lodged with the Registrar, accept the exercise of jurisdiction by the Court with respect
to the crime in question. The accepting State shall cooperate with the Court without any delay or exception
in accordance with Part 9.

This article outlines the preconditions that must be met in order for the International Criminal Court (ICC) to exercise its jurisdiction over a particular case.

The first precondition stated in Article 12 is that a state must become a Party to the Statute in order to accept the jurisdiction of the Court with respect to the crimes referred to in Article 5. This means that states must agree to be bound by the ICC's authority before it can intervene in any criminal matters within that country.

The second precondition outlined is that in certain cases under Article 13, the Court may exercise its jurisdiction if one or more specific states are Parties to the Statute or have accepted the jurisdiction of the Court. These states include the one where the conduct in question occurred, the state of registration of a vessel or aircraft if the crime was committed on board, and the state of nationality of the person accused of the crime.

The third provision allows for non-party states to accept the jurisdiction of the Court with respect to a specific crime by making a declaration with the Registrar. It is important for these states to cooperate with the Court promptly and fully in accordance with the guidelines outlined in Part 9 of the Statute.

Overall, Article 12 highlights the importance of state cooperation and acceptance of the ICC's jurisdiction in order for it to effectively investigate and prosecute individuals accused of committing international crimes. Compliance with these preconditions is crucial for the Court to fulfill its mandate of ending impunity for the most serious crimes of concern to the international community.