As a lawyer, Keith has aspired to be a zealous advocate the ideals of the law. Here are some samples of his advocacy and scholarly contributions:
Open Letter to Justice Scalia, Executing the Innocent (29 National Law Journal 14 (2007)
"Vigilantism in a Black Robe," Texas Lawyer (February 19, 1996)
Stranded in the Wasteland of Unregulated Roadway Police Powers: Can "Reasonable Officers" Ever Rescue Us?, 35 St. Mary’s L. J. 499 (2004)
Children in the War on Crime: Texas Sex Offender Mania and the Outcasts of Reform, 42 S.Tex.L.Rev. 781 (2002)
In addition to numerous legal papers and scholarly works, Keith is also an author. He is co-author of Offenses and Defenses in Texas (West Publishing). He also co-authored Texas Punishment: A Source Book for Defense Lawyers (TCDLA 2007) and wrote Texas Writs: A Practical Guide to the Basics of State Writ Practice for the Busy Criminal Defense Lawyer (TCDLA 2006).