This BBC article covers this https://www.bbc.com/news/articles/c8641wv0n4go
The commission alleges that Israeli authorities and Israeli forces have committed four of the five acts of genocide defined under the 1948 Genocide Convention against a national, ethnic, racial or religious group - in this case, Palestinians in Gaza:
- Killing members of the group through attacks on protected objects; targeting civilians and other protected persons; and the deliberate infliction of conditions causing deaths
- Causing serious bodily or mental harm to members of the group through direct attacks on civilians and protected objects; severe mistreatment of detainees; forced displacement; and environmental destruction
- Deliberately inflicting conditions of life calculated to bring about the destruction of the group in whole or in part through destruction of structures and land essential to Palestinians; destruction and denial of access to medical services; forced displacement; blocking essential aid, water, electricity and fuel from reaching Palestinians; reproductive violence; and specific conditions impacting children
- Imposing measures intended to prevent births through the December 2023 attack on Gaza's largest fertility clinic, reportedly destroying around 4,000 embryos and 1,000 sperm samples and unfertilised eggs
To fulfil the legal definition of genocide under the Genocide Convention, it must also be established that the perpetrator committed any one of those acts with specific intent to destroy the group in whole or in part.
The commission says it analysed statements made by Israeli leaders and alleges that President Isaac Herzog, Prime Minister Benjamin Netanyahu and former Defence Minister Yoav Gallant have "incited the commission of genocide".
It also states that "genocidal intent was the only reasonable inference" that could be concluded from the pattern of conduct of Israeli authorities and security forces in Gaza.