All issues of Microgram (November 1967 - March 2002) and the first nine issues of its successor Microgram Bulletin (April - December, 2002) were Law Enforcement Restricted publications, and are therefore generally unavailable to the public.
Past issues or individual sections of issues (e.g., specific articles) are available to law enforcement affiliated offices and laboratories. Requests from such offices and laboratories must be made on official letterhead and mailed to:
Deputy Assistant Administrator
Office of Forensic Sciences
Drug Enforcement Administration
8701 Morrissette Drive
Springfield, VA 22152
Note that requests made via email will not be honored.