MSC Musica - Bring water onboard

Was on an MSC cruise in 2010, I think they only had a problem with bringing alcohol on board. When you returned from a shore trip you had to go through a lite version of airport security which involved a scan of your bag.

From the MSC website conditions of carriage...

13. ALCOHOL

13.1 Alcoholic drinks, including wines, spirits, beer or other liqueurs are available for purchase onboard the vessel at fixed prices. Passengers are not permitted to bring onboard any such drinks for use during the voyage, whether for consumption in their own cabins or otherwise. Alcoholic drinks in any form will not be sold to Minors during the cruise when the itinerary includes a port located in the USA, the same conditions will apply for any passengers under the age of 21.

13.2 The carrier and/or its servants and/or agents may conviscate alcohol brought onboard by passengers.

13.3 The carrier and/or its servants and/or agents may refuse to serve a passenger alcohol or further alcohol where in their reasonable opinion the passenger is likely to be a danger and/or nuisance to himself/herself, other passengers and/or the Vessel.

http://www.msccruises.co.uk/uk_en/Already-Booked/Standard-Conditions-Of-Carriage.aspx#msc13