17th Judicial DA
17th Judicial DA

Colorado's 17th Judicial District Attorney's Office

Serving the Residents of Adams and Broomfield Counties

District Attorney Brian S. Mason

17th Judicial DA

A Message from the District Attorney

Welcome to the District Attorney’s Office for Colorado’s 17th Judicial District.  It is an honor to serve this community as your District Attorney. 

The District Attorney’s Office is focused on two primary goals: keeping the community safe and making our criminal justice system better. We do this by pursuing justice with integrity in every case and by holding ourselves to the highest standards of ethics and excellence. 

There are many challenges facing the criminal justice system and our community right now. Here at the District Attorney’s Office, we are committed to the following overarching goals: 

  •       Fighting for the vulnerable
  •       Seeking justice for victims      
  •       Prosecuting offenders who commit violent crimes, domestic violence, human trafficking, drug trafficking, and other serious crimes that harm our community 
  •       Acknowledging issues of racism, both implicit and explicit, within our system  
  •       Focusing on education, outreach, and crime prevention, not just prosecution
  •       Exploring alternatives to incarceration and keeping people out of the criminal justice system when diversion programs and other alternatives will keep the community safe      
  •       Addressing the mental health crisis in the criminal justice system and our profession.  

The professional staff of the District Attorney’s Office works tirelessly, day and night, to serve this community with integrity and professionalism. In short, we are committed to doing the right thing – at all times – in every case. That is our pledge. And we will do so with an abiding commitment to justice, integrity, fairness, empathy, transparency, courage, and the rule of law.  

Meet Brian Mason Brian Mason’s Inaugural Address
Fight Against Fentanyl

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Prosecution News Updates

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Sexual and Domestic Violence

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Resources for Victims

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Mental Health 

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Financial Crimes

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Our Mission and Commitment to You:

The 17th Judicial District Attorney’s Office is committed to seeking and pursuing justice on behalf of victims of crime through the fair and ethical prosecution of those who commit offenses in our community. With a focus on education, treatment, and a reduction in recidivism, the District Attorney’s Office will also work vigorously to reform the criminal justice system to better serve the citizens of Adams and Broomfield Counties. 

Latest News and Press Releases

17th Judicial District Attorney's Office Files First-Degree Assault Charge Against Jose Noe Ulloa-Martinez
Posted Jul 11, 2024
Brighton, CO —Today, the 17th Judicial District Attorney’s Office is announcing the filing of a First-Degree Assault charge and various other charges against Jose Noe Ulloa-Martinez, 37, related to an
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District Attorney, Adams and Broomfield County Leaders Hosting Strategic Planning Session to Launch a Family Justice Center
Posted Jun 25, 2024
Brighton, CO – Today, District Attorney Brian Mason, Adams and Broomfield County leaders, stakeholders, and service providers are preparing to host a strategic planning session as they continue
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17th Judicial District Attorney's Office Files First-Degree Murder Charge Against Jesse Gladney
Posted Jun 12, 2024
Brighton, CO —Today, the 17th Judicial District Attorney’s Office is announcing the filing of a First-Degree Murder charge against Jesse Gladney, 37, related to the fatal shooting of a female victim i
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Broomfield Defendant Convicted of Vehicular Homicide That Killed Two People on Side of Interstate Sentenced to 24 Years in Prison
Posted Jun 11, 2024
Broomfield, CO — Today, District Attorney Brian Mason is announcing the conviction and prison sentence for Dusti Arensdorf, 43, related to an accident that killed two people on Interstate 25 in Broo
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