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Investigation Division
Investigations Division 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 Division 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 Division can be reached at (925) 288-4630 or email.

Investigation Division Assignments
Personnel Assignment Contact
Lt. Dan Connelly Division Commander Email
Sgt. David Nichols  Investigation Supervisor
Volunteer and Explorer Program Manager,
Missing Persons (Adult and Juvenile), Arson, Terrorism Liaison, Coroner follow up, Drug Filing
Det. Kevin Tillman Property Crimes, Residential and Commercial Burglary Email
Det. Chris Anderson Robbery, Felony Assaults, DOMV, Terrorist Threats, Auto Theft, Auto Burglary, 11590 Registrants, Internet Crimes Against Child (ICAC) Task Force Email
Det. Tammy Wooden Financial Crimes, Identity Theft, Forgery, Fraud, Grand Theft Email
Sexual Assault, YSB, Child Abuse, Elder Abuse, 290 Registration.