Lester Grinspoon
Dr. Lester Grinspoon is  an Associate Professor Emeritus of Psychiatry at Harvard Medical School, and on the advisory board of the National Organization for the Reform of Marijuana Laws (NORML).  He received his MD from Harvard in 1955, and served for forty years as Senior Psychiatrist at the Massachusetts Mental Health Center.  Dr. Grinspoon has extensive research experience with the scientific properties of smoked cannabis, and is the author of numerous influential publications on the subject including Marihuana Reconsidered and Marihuana, The Forbidden Medicine.   He is a fellow of both the American Association for the Advancement of Science and the American Psychiatric Association.  He is the founding editor of the Annual Review of Psychiatry and the Harvard Mental Health letter.  Widely considered an expert on the medicinal advantages and disadvantages of marijuana, he has testified numerous times before Congress on its therapeutic effects.