
Colorado Criminal Defense
Mulligan & Mulligan

A Commitment
to Excellence
When you need help, we’re here for you. Mulligan and Mulligan have defended people in the state and federal courts of Colorado since 1992. And our experience shows–in May 2024, Mary Claire Mulligan was awarded the prestigious Jonathan Olom Award by the Colorado Criminal Defense Bar. She is in demand as a lecturer and expert witness. Casey Mulligan is frequently consulted by other lawyers because of his appellate expertise.
We put your needs first, and strive to help you achieve the best result possible. We make sure you’re in a position to do what’s right for yourself and your family while we take on the criminal case. Being charged with any crime is stressful–we use our knowledge and experience to give you realistic options.
We are based in Boulder, but have practiced throughout the metro area and on the western slope.
Get In TouchExperience Matters
We have represented thousands of Coloradans. We have represented people on death row and people right down the street. We’ve handled first-degree murders and petty offenses. We even “represented” a chinchilla once.
But we don’t rest on our laurels. We give each client our full attention and do the best job we possibly can.
Years of combined experience
Jury trials
Clients zealously represented

Award Winning
Representation
Don’t just take our word for it.
The Colorado Criminal Defense Bar awarded Mary Claire Mulligan the 2024 Jonathan Olom Award “for remarkable personal sacrifice made without regards to personal gain in the defense of the accused.”
The Jonathan Olom Award is presented annually to an outstanding attorney of the criminal defense community based on the activities and accomplishments over the previous year.
Practice
Areas
We’ve handled every type of criminal case in Colorado. Let’s see how we can best help you.
Testimonials
