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  • Criminal Investigations Division


    Biography of Patsy Mundell, Chief of the Criminal Investigations Division

    The Criminal Investigations Division is a specialized group of deputies that investigate felony crimes committed in unincorporated Jefferson County and files cases with the District Attorney's Office.

    Crimes Against Persons Section

    The Crimes Against Persons Section investigates homicide, sexual assault (adult victim), kidnapping, domestic violence, serious assault cases, robberies, missing persons and unattended deaths. This team has investigators who specialize in cold case homicides.

    Crimes Against Children Unit

    The Crimes Against Children Unit investigates crimes committed against juveniles, including child abuse, sex assault and child neglect.

    Property Crimes Section

    This team is assigned to investigate felony property crimes, including burglary, theft, motor vehicle theft, criminal mischief, trespass and other crimes. Investigators have found that many of the property-related crimes that occur in this county are crimes of opportunity. Suspects tend to take the path of least resistance by looking for open or unlocked doors. For crime-prevention tips, visit our Crime Prevention page.

    Metropolitan Auto Theft Task Force

    The Metropolitan Auto Theft Task Force (MATT) targets organized auto theft criminals in Jefferson County.  MATT's mission is to reduce vehicle theft and insurance fraud through a statewide cooperative law enforcement effort.

    Special Investigations Section

    The Special Investigations Unit investigates the following crimes: domestic and international terrorism; liquor violations; vice; complex crimes; identity theft; fraud; forgery; computer forensics; and gang activity. Investigators work closely with investigators from the United States Postal Service on cases involving stolen mail. The special investigations unit also conducts concealed weapon permit and federal firearms license background checks and investigates permit violations.

    Safe Streets Task Force

    The Safe Streets Task Force pools the expertise and resources of our special agents and investigator from the Federal Protective Service; the Aurora, Denver, and Lakewood Police Departments and the Colorado State Patrol. The task force targets bank robbers, fugitives, and other violent offenders.

    Joint Terrorism Task Force

    The Joint Terrorism Task Force brings together representatives of 22 local, state, and federal agencies to run down any and all terrorism leads, develop and investigate cases, provide support for special events, and proactively identify threats that may impact the area and the nation.

    Metropolitan Gang Task Force

    The Metropolitan Gang Task Force brings together federal, state, and local law enforcement to identify, target, and address organized gang-related groups involved in drug trafficking and/or violence.

    Drug Enforcement Administration

    The Jefferson County Sheriff's Office contributes personnel and manpower to the Drug Enforcement Administration (DEA).  The premise of the efforts is to investigate individuals and groups involved in illegal-drugs trafficking and associated criminal enterprises.

    West Metro Drug Task Force

    The West Metro Drug Task Force. View exit disclaimer policy page for links to third-party websites. was formed in 1992 to reduce the amount of illegal drugs available in the community by sanctioning those who provide the drugs.

    Jefferson County Regional Crime Laboratory

    The Jefferson County Regional Crime Laboratory is responsible for crime scene response and processing, polygraph tests, forensic photography, latent print comparison, questioned documents, controlled-substance analysis and clandestine drug laboratory analysis. The laboratory also provides training to the Jefferson County Sheriff's Office deputy and citizens' academies and the crime scene technician program.

    Evidence Unit

    The evidence vault contains physical evidence relating to criminal cases in unincorporated Jefferson County. Evidence vault custodians ensure the integrity of all stored evidence and property, and they produce these items quickly and accurately for legal proceedings.  The vault processes and stores more than 13,000 items each year. Items are periodically purged on a case-by-case basis (following adjudication), based on instructions from deputies and investigators involved. Property isreturned to owners, destroyed, converted to county property or auctioned.

    Victim Services Unit

    Four full-time and nearly 30 volunteer victim advocates respond to the needs of crime and crisis victims by providing crisis intervention, support, referrals and help with the criminal justice process. Advocates work with victims on-scene or immediately following a traumatic event, and they may refer victims to mental health professionals for long-term care or community assistance programs. Work done by the Victim Services Unit is based on the Colorado Victim's Bill of Rights.

  • Division Chief Patsy MundellChief Patsy Mundell

    Patsy Mundell joined the Jefferson County Sheriff's Office in 1986. After working as a deputy on patrol and as an investigator specializing in crimes against children, she gained experience working in every division of the department. Mundell has held supervisory positions in detentions, patrol, investigations and support services. She received specialized training in incident command and criminal investigations from the U.S. Department of Justice and the Northwestern University Center for Public Safety, respectively.

    Mundell was appointed chief of the support services division in 2002, making her the highest-ranking woman in the sheriff's office history. Today, Mundell serves as chief of the detention services division, overseeing operations for the Jefferson County jail, one of the largest detention facilities in Colorado.

    Mundell, who graduated from the Police Executive Research Forum at the Senior Management Institute of Policing at Boston University in 2005, has a bachelor's degree in criminal justice and public safety from Metropolitan State College. In 2013, she graduated from the 254th session of the FBI National Academy. She is active in the community, volunteering as a youth basketball and softball coach.

    See the Criminal Investigations Division Organizational Chart Adobe Reader is required for viewing this document