'The Friends of Israel' relised it needed investigation; that's why they commissioned an enquiry and mocked-up a report absolving Israel.

Yes, but there was nothing mocked up about the report.
Top military leaders, all from democratic countries, and not a Zionist or even a Jew amongst them.

It was Hamas who flouted International Law, which put their own civilians in harms way and whose consequent suffering they cynically exploited for propaganda.