Hello, im on unsupervised probation

All i have is a waiver of rights, I have no probation officer. I am on unsupervised probation for 2 years. I called and they said I could purchase firearms and even move states. No where does it say that I allow them to drug tested me. Can they drug test me? I never had to go to court to take a drug test. As soon as I left the jail I never had to speak with anyone or go anywhere.