Boarding a cruise ship is similar to boarding an airplane. You can check your luggage and it will be delivered to your stateroom in a couple of hours. During the process, your carry-on baggage will go through a scanner just like the airport and anything prohibited will be confiscated. 

Checked luggage goes through a scanning process as well before it gets to your stateroom. While many passengers claim to have success bringing restricted items onboard their cruise, it’s not advisable to try. Cruise lines have policies in place for the protection of your fellow passengers. 

Items like guns, other weapons, alcohol and illegal drugs should be left at home.