It took International Criminal Court Chief Prosecutor Fatou Bensouda five years to conclude her preliminary examination of the situation in Palestine, which found “a reasonable basis” to believe that “war crimes have been or are being committed in the West Bank, including East Jerusalem and the Gaza Strip,” and thus to initiate an investigation. Her statement on December 20, 2019 announcing the end of the inquiry was met with widespread enthusiasm by victims and human rights organisations alike. But the celebrations came too soon.
https://www.aljazeera.com/opinions/2020/12/5/the-palestinian-case-at-the-icc-is-legal-not-political/