State Comptroller Yosef Shapira announced Wednesday he will launch an investigation into the military and political leadership’s handling of Operation Protective Edge.

According to a statement from his office, Shapira’s decision was triggered by claims that Israel violated international law in the month-long military campaign in the Gaza Strip. In addition, there are claims that Israel doesn’t monitor IDF activities in keeping with international law, the statement said.

The State Comptroller’s office said it has recently received dozens of complaints about IDF actions in Gaza during the campaign.

The investigation will examine Israel’s handling of the threat of a series of tunnels dug by Hamas to infiltrate into Israel, as well as home front preparedness, the Home Front Command’s activities during the campaign, treatment of Israelis in the conflict zones and official efforts at public advocacy during the operation.

During the land operation in Gaza, the IDF destroyed over 30 tunnels dug by Hamas under the border with Israel. Fighters used the tunnels to infiltrate into Israel on a number of occasions, killing 11 Israeli soldiers.

The announcement came as former public officials, including former envoy to the US Michael Oren and Prof. Yitzhak Dror, called on Israel to investigate its actions and decision making during the war.

Dror was previously on a panel that investigated the 2006 Second Lebanon War.

Jerusalem has indicated it will likely not cooperate with a United Nations Human Rights Council probe into possible war crimes during the conflict. Israel has declared the impending investigation unlikely to be fair and unbiased. On Wednesday Foreign Minister Avigdor Liberman said Israel should refuse to cooperate with the panel to avoid giving it any legitimacy.

Israel holds Hamas responsible for most of the civilian injuries during the fighting due to its rejection of ceasefires and its practice of using the local population as human shields.