Reggie Marinelli
First Female Sheriff of Jefferson County
Sheriff Reggie Marinelli is a 40-year veteran of the Jefferson County Sheriff's Office and has served as Sheriff since January 2023. Throughout her distinguished career, she has served in every division of the agency, providing her with a deep understanding of law enforcement operations, investigations, detention services, and community safety.
Prior to being elected as Sheriff she worked as the Volunteer Coordinator for the agency and preceded that assignment with one in the detention facility, where she was the acting PREA Coordinator and overseeing the Moral Reconation Therapy being offered to the inmates within the facility. Prior to that she spent three years as the Commander of the West Metro Drug Task Force where her duties included supervision of undercover operations, managing an office of 24 personnel from 6 different organizations, administering a large budget and overseeing Asset Forfeiture funds both locally and federally.
Prior to transferring to the Drug Task Force, Reggie served as a Lieutenant in the Jefferson County Detention Facility. Preceding that assignment, she oversaw daily scheduling and supervision of a shift of deputies on patrol. As a deputy, Reggie began her career in Detentions, moving forward then to the patrol division where she served for many years. Just prior to promoting, Reggie served several years as an Investigator handling crimes against persons. She has worked many cases in coordination with other agencies on statewide indictments and became a local expert in the Satanic Occult while in investigations.
During her tenure Reggie has been responsible for writing and overseeing policy, contracts and grants, she took part in the initial development of the Sheriff’s Office accreditation process with CALEA and assisted in coordinating a statewide forum in 1994 addressing Violent Youth Crime in Colorado.
Reggie taught for many years in her agency's Law Enforcement Academy and is currently teaching Critical Incident within a Facility for the County Sheriffs of Colorado and she is also doing consultant work for The Moss Group, traveling all over the United States teaching others in Investigative Techniques, Processing of crime scenes and Preservation of evidence, to include case preparation for trial.
Sheriff Marinelli holds a bachelor’s degree in Criminal Justice and is working on her Masters in Criminal Justice from American Military University.
Key Priorities
Employee Wellness
Mental health support center for deputies with dedicated staff, chaplains, and volunteers
Recruitment & Training
Bolstering recruitment and enhancing training opportunities for all employees
Reducing Recidivism
Expanding evidence-based and alternative programming in the jail
Wildfire Prevention
Multi-agency coordination for prevention, preparation, and community communication


