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

Lieutenant Brian Leonard         Division CommanderEmail / Phone: (925) 288-4633
Sergeant Chris AndersonInvestigations SupervisorEmail / Phone: (925) 288-4619
Corporal Alan RoanInvestigations CorporalEmail / Phone: (925) 288-4637
Detective Brett BotelhoPerson CrimesEmail / Phone: (925) 288-4638
Detective Stephen VuongProperty CrimesEmail / Phone: (925) 288-4635
Officer Tammy WoodenSchool Resource OfficerEmail / Phone: (925) 288-4688
Admin Asst Stacy Corr                   Alarm Registration, Volunteer Program, Clerical & Administrative Support
Email / Phone: (925) 288-4632