The Law Office of Mark T. Langston, P.C.
A Colorado Criminal Defense Law Firm

Mark T. Langston

  • President
  • Attorney


Boulder, CO






Mark Thomas Langston was born on January 3, 1959, and grew up near Washington, D.C.  In 1977, he moved to Boulder to attend the University of Colorado.  He obtained his undergraduate degrees in 1981 and his law degree in 1985.  He is married to Boulder Family Law Attorney Carol Glassman and they have an adult son. When not defending the criminally accused, Mark enjoys skiing, bicycling, hiking, baseball, travel, photography, music and cooking.

Mark is active in his community and serves on the Board of Directors for the YMCA of Northern Colorado.  Mark and his family are also members or supporters of the University of Colorado Alumni Association and Buff Club, United States Ski Team, Boulder Shelter for the Homeless, Emergency Family Assistance, Community Food Share, and the Sister Carmen Center.

Areas Of Practice

  • Criminal Defense
  • DUI and Driver's License Revocation
  • Felony and Misdemeanor Offenses
  • Post-Conviction Matters
  • Professional Disciplinary Actions
  • University of Colorado Student Conduct and Disciplinary Proceedings

Bar Admissions

  • Colorado, 1985
  • U.S. District Court District of Colorado
  • U.S. Court of Appeals 10th Circuit


  • University of Colorado School of Law, Boulder, Colorado
    • J.D. - 1985
  • University of Colorado at Boulder
    • B.A. - 1981
  • Winston Churchill High School, Potomac, Maryland, 1977

Professional Associations and Memberships

  • National Association of Criminal Defense Lawyers (NACDL), Member
  • Colorado Criminal Defense Bar (CCDB), Life Member, 1985 to Present
  • Colorado Criminal Defense Bar (CCDB), Past President, 2004 to 2005
  • Boulder County Bar Association, Member
  • Boulder County Bar Association, Professionalism Committee, Chair , Present
  • Colorado Bar Association, Member

Pro Bono Activities

  • Colorado Criminal Justice Reform Coalition, Member
  • Coloradans for Alternatives to the Death Penalty, Member
  • Boulder County Bar Foundation, Member
  • Legal Aid Foundation of Colorado, Member
  • YMCA of Northern Colorado, Board of Directors
  • University of Colorado Alumni Association
  • Boulder Shelter for the Homeless
  • Emergency Family Assistance
  • Community Food Share
  • Sister Carmen Community Center