The United Nations special rapporteur on human rights in the Palestinian territories has said Israel's military offensive on Gaza "would seem to constitute a war crime of the greatest magnitude under international law".
Richard Falk calls the Israeli attacks a "massive assault on a densely populated urbanised setting", with the civilian population subjected to "an inhumane form of warfare that kills, maims and inflicts mental harm".
His findings were written in a report submitted to the UN Human Rights Council on Thursday.
An Israeli military college has printed damning soldiers' accounts of the killing of civilians and vandalism during recent operations in Gaza.
One account tells of a sniper killing a mother and children at close range whom troops had told to leave their home.
Another speaker at the seminar described what he saw as the "cold blooded murder" of a Palestinian woman.