Israel was concerned by reports in the Palestinian media that at every stage of their visit to Gaza the Mission members were accompanied by Hamas representatives.
If so, this was clearly a major obstacle to obtaining genuine evidence, particularly regarding Hamas' violations of international law, and its use of civilians as human shields.
The unprecedented decision of a fact-finding mission to hold public hearings was also troubling.
The very point of a fact-finding mission is that a team of experts bring their experience and judgment to bear in assessing the available evidence and drawing responsible conclusions - not that emotional allegations are directly broadcast into the public arena, without any possibility of taking confidential or sensitive information into consideration.