Mark A. Richardson

Prosecuting Attorney
Title: Prosecuting Attorney
Phone: 573-634-9180

Mark Richardson is presently serving in his 3rd term as Cole County Prosecuting Attorney, having first been elected in 2006. He previously served 6 years as an Assistant Prosecuting Attorney in the same office from 1985 to 1992. He served 4, 2-year terms as the elected Jefferson City Municipal Judge, beginning in 1999.  As of 2016, he is serving as the President-Elect of the Missouri Association of Prosecuting Attorneys. 

After graduating from the University of Missouri School of Law in 1984, Richardson began his legal career as a Missouri Assistant Attorney General under then-Missouri Attorney General John Ashcroft, serving from 1984 to 1985. In 1992, he entered private practice as an attorney in Jefferson City.

Richardson has lectured on Fourth Amendment search and seizure law, police civil liability, testimony in court/expungement for the Missouri Police Chiefs Association, and he served as editor of "Case Law Update" for the Missouri Office of Prosecution Services, 1986-1987. He has completed the following courses through the National College of District Attorneys:
  • Trial Advocacy (1986)
  • Prosecution of Violent Crime (1988)
  • Prosecuting Drug Cases (1990)
  • Prosecuting Homicide Cases (2007)
  • Inside the Mind of a Killer (2016) 
  • Office Administration (2016) 
He served as a trial attorney for the Cole County Juvenile Office from 1992-1994. Richardson completed the course of Sentencing Motor Vehicle Law Offenders through the National Judicial College in 2004. He has appeared as a guest speaker for various organizations to educate citizens on the subject of the law and the court. He has personally tried over 75 jury trials, over 65 as a prosecutor. He has handled more than 50 cases in our Missouri Appellate Courts, including several before the Missouri Supreme Court.

Richardson is a member of:
  • American Bar Association
  • Cole County Bar Association
  • Missouri Association of Prosecuting Attorneys
  • Missouri Bar Association
  • National District Attorneys Association

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