Traffic Section

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The Traffic Section’s primary focus is to create a safe and expedient flow of vehicle and pedestrian traffic in the Town of Prescott Valley through citizen education.
The Traffic Section is supervised by Sergeant Rob Brown. Officers assigned to the Traffic Section enforce speed limits and other traffic laws, investigate traffic accidents, and perform select traffic enforcement details, such as commercial vehicle inspections and DUI saturation patrols.
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Sergeant Rob Brown

Sergeant Rob Brown has worked with the Prescott Valley Police Department for his entire nearly 20 years in law enforcement. He began in Patrol, then became a motorcycle officer for nine years. He served in SWAT for six years, two of them as sergeant, and worked in criminal investigations for three years.

Sergeant Brown began the department’s vehicle impound program, has instructed at the Northern Arizona Regional Training Academy (NARTA) and oversees the PVPD K9 program. He also has served with the Family Violence Unit, and writes the Department of Highway Safety grants each year that provide PVPD with money for DUI, speed and child safety enforcement. He has overseen four DUI roadblocks in Prescott Valley during his career. He is a traffic accident reconstructionist, oversees Drug Recognition enforcement, and does commercial truck enforcement.

Sgt. Brown has a passion for traffic enforcement because traffic issues generate the highest number of complaints to the Prescott Valley Police Department, and the most injuries. “Traffic enforcement is very important,” he says. “It keeps our community safer."

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Sergeant Rob Brown

Officer Brad Penner

Officer Brad Penner has been in law enforcement for 18 years – 11 with the Tempe PD, a year with DPS, and six year with Prescott Valley. A two-time recipient of the department’s Officer of the Year honors, Penner works in Patrol, Traffic and as a SWAT negotiator.

His work with DPS interested him in traffic enforcement, and he is experienced in intoxication testing and accident reconstruction.

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Officer Brad Penner

Officer Matt Cahill

Officer Matt Cahill volunteered for the Prescott Valley Police Department before he was hired. An ERAU student who was a helicopter pilot studying safety science, he chose to be an officer, and graduated from the Northern Arizona Regional Training Academy (NARTA) four years ago.


Traffic enforcement and getting impaired drivers off the road have been Cahill’s passions since he started with the PV department. He has served on the callout crash team, which investigates serious crashes, for two years. He also conducts accident reconstruction. Additionally, he assists the department with researching and equipping police vehicles with updated technology.

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Officer Matt Cahill
If you have a traffic-related question, wish to request traffic enforcement in your neighborhood Sergeant Rob Brown may be contacted at 928-772-5103 or via email.

Special Thanks


Prescott Valley Police Department extends a special thank you to the Governor's Office of Highway Safety for their support and assistance for our traffic enforcement efforts through funding of traffic-related safety grants.

3511 Hearings


All 3511 hearings will be held on Tuesdays and Thursdays, 8:00 a.m. - 1 p.m. For further information, please contact a Community Service Officer at 928-772-9261.