They conclude (bolded mine):
On the basis of the data presented in this report, an analysis of the choice of targeted areas, methods of attack and the number of civilians killed and injured clearly indicates a reckless disregard for civilian life synonymous with intent. Further, it is clear that 'Operation Cast Lead' was not just an assault against the Palestinian population, but also against the Gaza Strip’s infrastructure and the livelihoods of its people, with factories, farms and other economic resources systematically targeted. Prima facie evidence exists of the commission of war crimes amounting to grave breaches of the Geneva Conventions, most notably wilful killing of civilians, including women and children; extensive destruction of property, both residential and commercial, public and private; and wilfully causing great suffering and serious injury to body or health. This is in addition to the fact that the resort to the use of force by Israel was unlawful in the first place.
The denial of access to foreign journalists during the siege and Israel’s refusal to cooperate with various international investigation mechanisms that have been established are testament to a desire to suppress the truth and full information regarding the scale of the destruction wrought by this unprecedented attack. The figures contained in this report are intended to contribute to a growing database of documentary evidence on 'Operation Cast Lead'.
More than six months after the end of operation, the Gaza Strip remains under siege. The continued border closures by Israel and the prevention of crucial supplies from entering Gaza, ensure that the humanitarian situation remains dire.
Incidentally, considering how detailed and important this report is, they should not have released it in mid-August, when few people are paying attention, but waited till September.