The New York Times, October 22, 2010 by John Schwartz
http://www.nytimes.com/2010/10/23/us/23execute.html?_r=1&scp=5&sq=Berkeley&st=nyt
Megan McCracken, an adviser on lethal injection issues to the death penalty clinic at the University of California, Berkeley School of Law, argued that the origin of the drug used was nonetheless important under the law…. To Ms. McCracken, the lack of information about the drug opens Arizona to a challenge under the Baze decision. “Its provenance matters,” she said.