The Dunera was the last troopship to leave Port Said 22 Dec 1956 and I was on it.
We had on board Royal Scots and I think the East Yorks Regts. A lot of booze was brought on board (spoils of war) and fighting took place with men being glassed with bottles etc.
A search took place and most of the liquor was thrown overboard. When the Dunera arrived at Southampton the soldiers were further searched for illegal weapons.
Look for newspapers about this in 3 Jan for further info.