Adolf Lande served for many years as secretary of the Permanent Central Narcotics Board and the Drug Supervisory Body (two international drug organs) and was the primary drafter of the Single Convention on Narcotic Drugs

Single Convention on Narcotic Drugs

The Single Convention on Narcotic Drugs of 1961 is an international treaty to prohibit production and supply of specific drugs and of drugs with similar effects except under licence for specific purposes, such as medical treatment and research...

. He also wrote the Commentary of both the Single Convention and the Convention on Psychotropic Substances

Convention on Psychotropic Substances

The Convention on Psychotropic Substances of 1971 is a United Nations treaty designed to control psychoactive drugs such as amphetamines, barbiturates, benzodiazepines, and psychedelics signed at Vienna on February 21, 1971...

. These documents are crucial to the interpretation of the treaties. Lande was considered one of the most foremost authorities on UN international drug control legislation.