He does both civil and criminal litigation and has handled hundreds of criminal cases as a prosecutor and defense attorney, from investigation through trial and appeal. He taught Criminal Procedure and Evidence at Southwestern Law School and has published a dozen scholarly articles on criminal procedure and constitutional law, including “Jay-Z’s 99 Problems, Verse 2: A Close Reading With Fourth Amendment Guidance for Cops and Perps,” which young lawyers may have read while studying for the bar. Additionally, he is a regular media commentator on criminal justice topics.