James Colgan

James Colgan is a highly respected Colorado trial attorney with over 25 years of courtroom experience representing clients on both sides of the legal system. His career reflects a rare and powerful combination of law enforcement, prosecution, defense, and civil trial advocacy, giving him a comprehensive understanding of how cases are built—and how they are won.

Attorney Colgan began his professional career in law enforcement, serving as both a police officer and deputy sheriff for nearly five years. That firsthand experience investigating crimes and working within the criminal justice system laid the foundation for his legal career and provides invaluable insight into police procedures, evidence gathering, and constitutional protections.

After leaving law enforcement to attend law school, Mr. Colgan quickly discovered that litigation and trial work were where he belonged. Upon graduation, he joined the District Attorney’s Office, where he spent years advocating for victims of serious crimes. As a Chief Deputy District Attorney, he successfully conducted numerous jury trials involving offenses ranging from DUI and child victim crimes to sexual assault and homicide. His work helped secure justice for victims and removed dangerous individuals from the community.

Following his tenure as a prosecutor, Attorney Colgan made a purposeful decision to shift his practice toward representing individuals rather than the government or corporations. Driven by a passion for helping people navigate the complexities of the legal system, he transitioned into private practice to advocate for those facing life-altering legal challenges.

Today, James Colgan represents criminal defendants and plaintiffs in personal injury cases, fighting to protect their rights, freedom, and financial recovery. Whether securing statutory compensation for injured clients or mounting a powerful defense for individuals accused of crimes, he brings unmatched trial readiness and strategic precision to every case.

What truly distinguishes Attorney Colgan is the depth and diversity of his trial experience. He has tried cases as a prosecutor, as a criminal defense attorney, and as plaintiffs’ counsel in civil litigation—an uncommon combination that allows him to anticipate opposing strategies and command the courtroom with confidence. Former clients have described him as a “pit bull in the courtroom,” known for his relentless advocacy and unwavering commitment to results.

When you or a family member need an experienced Colorado trial lawyer with a proven record on both sides of the courtroom, the Law Offices of James Colgan provide the skill, experience, and determination necessary to protect your future.