He provided written assurances to the British authorities that the Haganah commander in the Old City, Abraham Halperin, was a male nurse thus allowing him to take up his post in the Jewish Quarter.
[7] As the situation deteriorated at the end of 1947, Weingarten advocated co-operation with the British authorities and opposed the Haganah's presence in the Old City.
[8][9] On May 13, 1948, as the British Army left Jerusalem, a major from the Suffolk Regiment presented Weingarten with the key for the Zion Gate.
[12] Fifteen days later, on Friday May 28, with the Jewish Quarter completely cut off, Weingarten and a Haganah representative met Abdullah el Tell, the local commander of the Arab Legion, to discuss surrender terms.
His evidence was critical of the Haganah's actions, describing "complete confusion during the last week of fighting, with no military effort to maintain contact with the civilians.