HMS Astute, Southampton: Police investigations, carried out by the Hampshire Constabulary have found out that the consumption of 20 pints of cider was not unsual for naval ratings and "significant" numbers of the crew used to get "drunk out of their minds" on the nuclear class submarine, HMS Astute.
But don't worry, unecessarily the Royal Navy has since tightened its rules on alcohol consumption before duty. Previously, sailors were allowed 10 units in the previous 24 hours before duty with no alcohol in the 10 hours before duty, which has now been changed to five units.
The Commander of HMS Astute has concerns about the naval ratings and expressed "surprised" to hear of Hampshire Police's fears of binge drinking by the naval ratings.
Just to add, that Britain still has the best Navy in the World!