They never tested when i was in 3 months ago. never did it ether but I had several friends who did and it was clear bc they blew up quickly. But hey if you do get caught you only screwed the people around you and your contract. Its still a contralled substance no matter how you look at it. Just think of the people you let down if you get caught. My cousin unit got busted bc one kid popped after he got in a fight with his wife. so they raided a lot of people lockers and got people to tell on each other. so keep it a secret and dont even tell your best boys in there.