4450 Arapahoe Avenue, Suite 100,
Boulder, CO  80303
+1 (303)-448-8818

Ann Roan has been a criminal defense lawyer in Colorado for 30 years, in courtrooms all over the state.

From misdemeanors to the most serious felonies, from trial work to appeals and post conviction proceedings, Ann has the experience and skills to get the results her clients want.

If you or a family member need a strategic, skilled and experienced advocate, Ann has the resources to protect your rights.

“A person charged with a crime requires the guiding hand of counsel at every step in the proceedings against him. Without it, though he be not guilty, he faces the danger of conviction because he does not know how to establish his innocence.”

—Powell v. Alabama, 287 U.S. 45, 69 (1932)


As a highly experienced trial lawyer, Ann has tried approximately 50 jury trials.  She is well known in Colorado and nationally as one of the leading experts in jury selection and litigation skills and other lawyers frequently hire her as a jury selection consultant. Her written advocacy and thoughtful pretrial litigation help clients exclude harmful evidence and secure fair proceedings at trial, and convince the prosecution that the threat of trial is not to be taken lightly. Ann’s negotiating skills have helped clients under investigation avoid the filing of criminal charges. When cases go to trial, she has persuaded jurors to acquit her clients in cases involving solicitation to commit murder, sexual assault, theft, and drug sales and possession.

Ann has substantial experience and expertise in defending clients under the age of 18. She has represented many children in juvenile court and has also defended children the prosecution chose to prosecute as adults. Ann understands the devastating impact on families when children are involved in the criminal system, and how vitally important it is to ensure that these cases are handled in a way that do not keep children from leading productive, successful lives.

She has served as an expert witness on what constitutes effective assistance of counsel and she is a frequent teacher and consultant to other lawyers across the country.  She is a faculty member of both the National Criminal Defense College and the Capitol Voir Dire College of the National Association of Criminal Defense Lawyers.  She has published articles about trial defense and strategy in both the National Association of Criminal Defense Lawyers’ and the Colorado Bar Association’s monthly journals.  Ann is also an adjunct criminal law professor at the University of Colorado School of Law.


Ann spent six years practicing exclusively before the Colorado Court of Appeals and the Colorado Supreme Court. She has persuaded both those courts to reverse criminal convictions on behalf of her clients, and to deny the prosecution’s attempts to change favorable rulings by the trial court.

Her extensive experience in postconviction litigation is framed by her detailed understanding of the complicated, specialized body of law that applies to postconviction motions, and her compelling writing skills.  In 2019, she testified about postconviction law in Colorado before the Senate Legislative Committee of the Colorado General Assembly.

Representative Appellate Cases

  • People v. Garcia, 1 P.3d 214 (Colo. 1999) (second degree murder conviction reversed)
  • People v. Garcia, 28 P.3d 340 (Colo. 2001) (second degree murder conviction reversed)

  • People v. Felgar, 58 P.3d 1122 (Colo. App. 2002) (fraud conviction reversed)

  • Woldt v. People, 64 P.3d 256 (Colo. 2003)(Colorado death penalty statute held unconstitutional)

  • People v. Zedack, 93 P.3d 629 (Colo. App. 2004) (possession of controlled substance charges dismissed)

  • People v. Harding, 104 P.3d 881 (Colo. 2005) (sex assault conviction reversed)