Investigations Bureau


Investigations Bureau personnel conduct follow up on most felony crimes and present cases to the Contra Costa County District Attorney’s Office for the filing of charges. Cases assigned include; sexual assaults, domestic violence, stalking, aggravated assaults, homicide, robbery, burglary, auto theft, identity theft, and missing persons. Additionally, the School Resource Officer and the Community Resource Officer are assigned to the Division. 

The Investigations Bureau is also responsible for the youthful offender diversion program, sexual offender and monitoring program, narcotic offender registration, and the issuing of permits for massage therapy, business and residential alarms, concealed weapons, firearm sales, taxi services, and door to door sales. 

The Investigations Bureau can be reached at (925) 288-4630 or email.

Investigations Bureau Assignments

Personnel Assignment Contact
Lieutenant            David Nichols               Division Commander Email 
Sergeant Ron Priebe Investigations Supervisor 
Email / Phone: (925) 288-4634                                                 
Admin Assistant Courtney Lee  Alarm registration, Volunteer Program,
general office & clerical assistance 
Email / Phone: (925) 288-4632
Detective        James Woehrman Persons Crimes      
Email / Phone: (925) 288-4635
Detective        Chelsea Wright Persons Crimes Email / Phone: (925) 288-4637
Detective        Greg Perkiss Supervisor/Property Crimes Email / Phone: (925) 288-4636
Detective        Justin Morrison      Property Crimes
Email / Phone: (925) 288-4638
School Resource Officer Brett Botelho School Resource Officer Email / Phone: (925) 288-4688