Imagine you are an Israel Defense Forces (IDF) reservist who fought for Israel during Operation Pillars of Defense in Gaza. You travel abroad. Upon deplaning, you are arrested for war crimes.

Since 2000, there have been various attempts in several counties to prosecute Israeli citizens who participated in armed conflicts between Israel and its neighbors. The claim is that in the context of these conflicts, soldiers and commanders committed violations of international humanitarian law at a level that justifies the exercise of personal international criminal jurisdiction against those who committed the violations.

International criminal jurisdiction against Israelis can be exercised through two different mechanisms: universal jurisdiction and the International Criminal Court.

What is universal jurisdiction?

Universal jurisdiction means any country may prosecute any person who has committed one or more of the most serious violations of international law: crimes of genocide, war crimes and crimes against humanity. Needless to say, any country can also prosecute those violations of international law if the crimes took place within its territory, or if the accused is a citizen of that country. However, many countries do not prosecute their own citizens for violations of international law. Actually, this is the main justification for the use of universal jurisdiction. Without it, many of the more serious violators of international law would never be punished. Would Nazi Germany have prosecuted Adolph Eichmann?

However, the exercise of universal jurisdiction creates serious political and legal problems because in making use of universal jurisdiction, the prosecuting country is intervening in acts that took place on the territory of another country — and in cases where the other country refused to do so.

Much criticism of universal international jurisdiction is directed at its use as a political tool. Sometimes, it is used against weak countries that do not have the ability to oppose its use. Other times, it is leveraged as a means of embarrassing another country for political reasons.

Can we expect that Israelis will be prosecuted under universal criminal jurisdiction?

There have not been many prosecutions of Israelis outside of Israel based on the exercise of universal jurisdiction. The main reason for this is that countries generally do not use universal jurisdiction if the country that is most closely connected to the incident investigates it and, when needed, prosecutes those responsible. As long as Israel conducts proper investigations regarding suspicions of violations of the laws of combat, there is no reason to presume that foreign courts would become involved. Nonetheless, there are concerns, especially when the State of Israel does not initiate an investigation, when these investigations are not considered intensive enough, or when they continue for long periods of time, without resolution. An effective Israeli investigation policy can prevent international intervention.

What is the International Criminal Court?

The International Criminal Court (the “ICC”) began operating in 2003. Its role is to prosecute those who commit the most serious violations of international law. In fact, the ICC was created as a neutral international body in response to the criticisms raised against the use of universal jurisdiction.

The ICC is only authorized to prosecute violations of international criminal law with respect to events that took place in countries that have signed the Rome Statute, by the citizens of those countries, or in accordance with a Security Council Resolution. In the past, because Israel had not signed the Rome Statute, it was reasonable to assume Israeli citizens were not likely to be prosecuted before the ICC. The situation changed somewhat in 2015, however. The ICC Prosecutor decided she would recognize Palestine as a state for the purpose of the Rome Statute, and Palestine’s adherence to the Rome Statute granted the ICC jurisdiction regarding suspicions of crimes committed on Palestinian territory. It is reasonable to presume that the ICC prosecutor would regard “territory of the State of Palestine” as including Judea, Samaria, and the Gaza Strip.

This does not mean the ICC prosecutor would initiate an investigation on suspicion of a violation of international humanitarian law — though it would have the ability to do so. Before even initiating an investigation, the ICC prosecutor must satisfy the requirement of complementarity.

Complementarity

According to the principle of complementarity, the ICC will not approve the opening of an investigation in cases in which the suspected defendant has already been investigated or prosecuted in the country that has the closest connection to the incident, as long as it can ascertain that the investigation/prosecution was genuine.

The ICC has the authority to decide whether such proceedings were conducted properly. Take the case the prosecution of Saif Al-Islam Gaddafi, the son of Libyan dictator Muammar Gaddafi. The courts rejected Libya’s claim that it was investigating the suspicions against Gaddafi, calling Libya’s investigation too general (it did not specify the crimes investigated or what investigative steps were taken).

Hence, there is only one good way to prevent prosecution before the ICC and the exercise of universal jurisdiction: Israeli authorities must conduct effective, independent, and genuine investigations in cases where there are suspicions of war crimes or other violations.

Prof. Amichai Cohen is a Research Fellow at the Israel Democracy Institute, where he works on the National Security and Democracy project.