Luis Moreno Ocampo, former first prosecutor of the International Criminal Court: the case put before the court was a "minimalistic one".
He said the judges did not analyse alleged genocide or bombing campaign.
"They focused on something that was very clear — which is starvation. Because Mr Gallant ordered the blockade of the food and water at the beginning, from the beginning and it's very clear," he said.
"Basically, [the prosecution] said Israel is using starvation as a tool, as a weapon in the war. "That is absolutely prohibited, it is not possible. "So that why, legally it's very difficult to challenge this because it's very simple, very clear."
Meanwhile, he said trying to prove a genocide was taking place was more "complicated". "To prove genocide the main issue is to prove intention.
"This is the chance, we have a chance now to transform a war into a criminal proceeding."
