Joe McNamara was a former police chief and scholar at the Hoover Institution.  He was an outspoken critic of the drug war and devoted much of his time to converting people within the law enforcement community. 

Here is a talk that he gave at Cato’s 1999 conference, Beyond Prohibition:
https://www.dropbox.com/s/ucftsgfrtshr7jk/McNamara.m4v?dl=0

Here is an article he prepared for Regulation Magazine in the wake of the 9/11 terrorist attacks, “The Defensive Front Line.”

Joe McNamara, RIP