The Rome Statute is the founding document of the International Criminal Court (ICC). It is a treaty that establishes the ICC and sets out its jurisdiction, powers, and procedures. The Rome Statute also contains a set of rules that govern the conduct of the ICC.

The core crimes defined in the Rome Statute are genocide, crimes against humanity, war crimes, and the crime of aggression. These crimes are considered to be the most serious crimes of concern to the international community.

Genocide is defined as the intentional killing of a group of people based on their race, ethnicity, religion, or nationality. It also includes the systematic and intentional destruction of a group of people, the causing of serious bodily or mental harm to a group of people, and the forcible transfer of children from one group to another.

Crimes against humanity are defined as serious crimes committed against civilians during armed conflict. These crimes include murder, extermination, enslavement, deportation, torture, rape, sexual slavery, enforced prostitution, forced pregnancy, enforced sterilization, persecution, and other inhumane acts.

War crimes are defined as serious violations of the laws and customs of war, human rights law, and international humanitarian law. These crimes include murder, torture, rape, sexual slavery, enforced prostitution, forced pregnancy, enforced sterilization, pillage, and the wanton destruction of property.

The crime of aggression is defined as the use of armed force by one state against another without justification. It also includes the threat of the use of armed force by one state against another, and the preparation for the use of armed force by one state against another.

The mental element required for most crimes in the Rome Statute is intent. This means that the perpetrator must have had the purpose of committing the crime.

The principle of complementarity in the Rome Statute states that the ICC can only prosecute crimes if the national courts are unwilling or unable to do so. This means that the ICC is a court of last resort.

The ICC has jurisdiction over crimes committed in the territory of a state party to the Rome Statute, crimes committed by nationals of a state party to the Rome Statute, and crimes committed by nationals of a state that is not a party to the Rome Statute if the Security Council refers the situation to the ICC.

The ICC can initiate an investigation on its own initiative, at the request of a state party to the Rome Statute, or at the request of the Security Council.

The accused in ICC proceedings have the right to a fair trial, the right to be presumed innocent until proven guilty, and the right to legal representation.

The ICC can impose a variety of penalties, including imprisonment, fines, and reparations.

The Assembly of States Parties is the governing body of the ICC. It elects the judges of the ICC, adopts the budget of the ICC, and makes decisions on other matters related to the operation of the ICC.

The Security Council can refer situations to the ICC, authorize the ICC to investigate and prosecute crimes, and impose sanctions on states that do not cooperate with the ICC.

The ICC is facing a number of challenges, including a lack of cooperation from some states. However, the ICC is making progress in its investigations and prosecutions, and it is playing an important role in promoting accountability for international crimes.