Some Boulder County services returned in-person on a limited basis beginning June 1. Most services are still being offered virtually.

Resources are available for those impacted by COVID-19. For help, submit questions or call 720-776-0822 weekdays (9 a.m.-5 p.m.).

Fire Restrictions were updated on June 2 and remain in effect for western Boulder County. View the flyer and map for more details.


Investigations Unit

The Investigations Unit of the 20th Judicial District Attorney’s Office provides investigative assistance, trial preparation, technical support and training to the prosecuting attorneys and law enforcement agencies of Boulder County.

The unit is staffed by state certified peace officers. All are involved in collateral duties such as: Hate/Biased Crimes Task Force/Witness Protection/ Cold Case Homicide Review Team/ Workplace Sexual Misconduct Task Force, and the Conviction Integrity Unit. One investigator is assigned to the Boulder County Computer Forensic Laboratory.

The unit has one technical support person who is responsible for court room trial support, creating demonstrative evidence and exhibits, completing A/V redactions, obtaining certified copies of criminal reports and convictions, and tracking cases and subpoenas.

Contact Us

District Attorney's Office

303-441-3700 (Main Office)
303-441-4703 (Main Office fax)
303-682-6800 (Longmont Office)
303-682-6711 (Longmont fax)
for Hearing Impaired
please use Relay Colorado

Mailing Address

Boulder District Attorney
P.O. Box 471
Boulder, CO 80306


Justice Center
1777 Sixth Street
Boulder, CO 80302
Map & Directions


Longmont Courthouse
1035 Kimbark Street
Longmont, CO 80501
Map & Directions