Yes, they record calls and open mail and all that shit. A lot of times it comes in through COs and that kind of thing. There are other ways that stuff gets in, just have to know the specific facility's policies and procedures and get creative. Sometimes this involves things that aren't so pleasant, but it can be worth it. I know last time I was in prison it was 3 bux for a toothpick sized cigarette rolled in book paper. Normally on the street a G of meff is around $200 and in the joint you could expect about $2000+ for the same.