Lethal Injection September 14, 1009--The Arizona Department of Corrections released the amendments as contemplated by Dickens v. Brewer to the Arizona Lethal Injection Protocol-Sep. 14, 2009. Protocol December, 2007--The Arizona Department of Corrections released the amendments to the October updates to the Arizona Lethal Injection Protocol - Dec. 2007 amendment October 9, 2007--The Arizona Department of Corrections released the recent updates to the Arizona Lethal Injection Protocol. Oct. 3 additions Dickens v. Brewer State v. Landrigan