There was two young women on our deck on the Grand Princess who smoked like a chimneys. The smell of pot was so strong people next to them called security. Our cabin steward told my wife and I they were keeping an eye on them. He checked their room every time he cleaned it. Any evidence he found was given to security. I have seen this happen twice. On the last day of the cruise federal agents pull your baggage and will take you in cuffs when you least expect it. These young women were in jail even before we woke up and prepared to leave the ship. They don't throw anyone a break.