http://www.norml.org/index.cfm?Group_ID=5049
'March 22nd marks the 30th anniversary of the release of the report of the so-called "Shafer Commission" -- the National Commission on Marihuana and Drug Abuse -- whose members were appointed by then-President Richard Nixon. The Shafer Commission's (named after commission Chair, Gov. Raymond Shafer of Pennsylvania) 1972 report, entitled "Marihuana: A Signal of Misunderstanding," boldly proclaimed that "neither the marihuana user nor the drug itself can be said to constitute a danger to public safety" and recommended Congress and state legislatures decriminalize the use and casual distribution of marijuana for personal use...'
Read the entire Shafer Commission report <a href=http://www.druglibrary.org/schaffer/Library/studies/nc/ncmenu.htm>here</a>