Randall was also the first legal medical marijuana smoker in the United States since 1937. He documented his accounts in his book, co-written with wife Alice O'Leary: Marijuana Rx: The Patients Fight for Medical Pot, ISBN 978-1560251668.
Randall successfully used a medical necessity defense when he was charged with illegal possession of cannabis to treat his glaucoma. The case, United States v. Randall, is "The first successful articulation of the medical necessity defense in the history of the common law, and indeed, the first case to extend the necessity defense to the crimes of possession or cultivation of marijuana".
- Zielinski, Graeme (8 June 2001). "Activist Robert C. Randall Dies; Won Right to Medical Marijuana". Washington Post.
- Andrew J. LeVay (May 2000), "Urgent Compassion: Medical Marijuana, Prosecutorial Discretion and the Medical Necessity Defense", Boston College Law Review, 41 (3), p. 715
- High in America by Patrick Anderson (chapter on Robert Randall)
- Robert Randall at the Drug Policy Forum of Wisconsin
- New York Times obituary