I am interested in joining the Submarine Service and I was interested in what I can/cannot/should take with me. I want to know so I know what to buy/not buy or leave home. I hear that personal electronics are generally not allowed, but if I'm a chef, could I bring my own knives for example? What's illegal apart from the obvious such as drugs. What will I be given as part of my kit and is there anything I have to buy?