UN human rights investigator Richard Goldstone has rejected Israel's claim that the peace process would be harmed by his report on the offensive in Gaza, BBC reported.
Judge Goldstone said there was no peace process at present and Israel's foreign minister did not want there to be one.
The Goldstone report, which has been endorsed by the UN Human Rights Council, accuses both Israel and Hamas militants of committing war crimes.
Mr Goldstone's remarks came in a conference call with American rabbis.
"It's a shallow, utterly false allegation," Mr Goldstone said of Israel's attempt to brand his report as an obstacle to peace.
"What peace process are they talking about? There isn't one. The Israeli foreign minister doesn't want one," Mr Goldstone said.
"If the Israeli government set up an appropriate, open investigation, it will really be the end of the matter. That's where the report would end as far as Israel is concerned," he added.
He was speaking days after Foreign Minister Avigdor Lieberman spoke of his belief that the Arab-Israeli conflict would not be resolved in the coming years, and people should "learn to live with it".
Palestinians and human rights groups say more than 1,400 Gazans were killed in the 22-day conflict that ended in January, but Israel puts the figure at 1,166. Thirteen Israelis, including three civilians, were killed.
In the report, Mr Goldstone calls for the war crimes allegations to be referred to the International Criminal Court at The Hague unless the parties to the Gaza war investigate them.
If the report comes before the UN Security Council, the US is expected to veto any call for ICC action against Israel.