NATIONAL TRAFFIC LAW CENTER
Contact Us
Contact us via our general National Traffic Law Center email at trafficemail@ndaa.org
or contact a specific staff member, listed below.


Joanne Thomka
Program Director
703.519.1645 jthomka@ndaa.org
Ms. Thomka was a Senior Assistant District Attorney for the Onondaga County District Attorney’s Office in Syracuse, New York prior to joining the NTLC in 2006. She was the Bureau Chief of the DWI Unit from April 2000 – August 2006, responsible for the prosecution of all alcohol-related crimes and all vehicular fatalities. Ms. Thomka was previously a member of both the Special Victims and Violent Felony Bureaus within the Onondaga County District Attorney’s Office. She is a graduate of Salem State College and Vermont Law School.

Mark M. Neil
Senior Attorney
703.519.1641 mneil@ndaa.org
Prior to coming to the NTLC in 2007, Mr. Neil was the Traffic Safety Resource Prosecutor for the West Virginia Prosecuting Attorneys Institute, a position he held from March 2004 until August 2007. He also served as the NHTSA Prosecutor Fellow during 2006 and 2007. A graduate of Vanderbilt University and the West Virginia University College of Law, he was a practicing attorney in West Virginia for over 24 years, 17 of which were as an Assistant Prosecutor in Raleigh and Fayette Counties.

Kristen K. Shea
Senior Attorney
703.519.1644 kshea@ndaa.org
Ms. Shea comes to the NDAA by way of the Tennessee Governor’s Highway Safety Office where she worked as a program manager for the DUI courts and multiple law enforcement grants. Prior to that, she served as a prosecuting attorney for almost 10 years with the majority of her time spent as an Assistant District Attorney in Nashville, Tennessee. She worked as the team leader of the Vehicular Crimes Unit, specializing in traffic-related criminal offenses at the state trial court level. Ms. Shea is a graduate of Trinity University and University of Memphis College of Law.
![]()
