A commission tasked with probing the 2010 deadly Israeli naval raid on a Gaza-bound ship has recommended several legal reforms to improve the conduct of military investigations.

Nine pro-Palestinian Turkish activists were killed on May 31, 2010, after Israeli commandos stormed a flotilla trying to breach Israel's blockade of Gaza.

The Israeli commission's first report on the raid dealt with the bloodshed onboard and cleared the military and government of any wrongdoing.

A second report was released on Wednesday.

It focuses on improving effectiveness and oversight of military investigations and recommends that high-ranking officers and civilian leaders should be held responsible for not doing enough to prevent illegal actions.

Sarit Michaeli, a spokeswoman for the Israeli rights group B'Tselem, says that if implemented, the recommendations would be "incredibly important."