Commander John Rosecrans
Commander Ian Lopez
Commander John Rosecrans has been a police officer with the City of Northglenn for 15
years. John was a Sergeant for nine years and was the Special Events and Traffic Sergeant for
four of those years. During his career, John has served as a SWAT Sniper, a Motor Officer, a Community Relations Officer, Field Training Officer, a Range Officer, and Armorer. Prior to becoming a police officer, John served with the U.S. Army Special Forces, and was the production manager for Burris Sports Optics.
John is married to Tracie, his wife of 22 years. John is an avid hunter and fisherman, and
he and his wife enjoy time with their four dogs at their country home in rural Larimer County.
Commander Lopez has been with the Northglenn Police Department since 1999. He has served the department as a Patrol Officer, Problem Evaluation and Response Team (PERT) Officer, Field Training Officer, SWAT Operator, Firearms Instructor and Tactical Instructor during his tenure. As a Sergeant for nearly ten years, he has supervised several patrol shifts, the hiring and recruitment process, the POST Academy coordination and Field Training and Evaluation Program for recruit officers, and served as the Training Unit Supervisor. Commander Lopez brings a diversity of experiences and a strong sense of service the department.
The Patrol Division provides first responder police services 24 hours a day, 365 days a year. It consists of one commander, seven sergeants, 43 patrol officers and two animal control officers.
Duties for this division consist of:
• Enforcing traffic and criminal laws
• Apprehending criminals
• Maintaining public order
• Answering calls for service
• Conducting investigations
• Educating the public regarding safety issues and crime
• Crime prevention
• Community relations
• School resources
The patrol division is broken into three shifts:
• Day shift (6:30 a.m. - 4:30 p.m.)
• Swing shift (3:30 p.m. - 1:30 a.m.)
• Graveyard shift (9 p.m. - 7 a.m.)