455 Devlin Road
Napa, California 94558
Office: (707) 253-4500
Hours: Monday - Friday / 8:00 AM to 4:30 PM
Personnel assigned to the NC3TF are available 24 hours a day.
Personnel can be reached during normal business hours at (707) 253-4500.
Law Enforcement only – for after-hours assistance contact the Marin County Sheriff’s Department at (415) 479-2311 and ask to have Marin County District Attorney Investigations Supervisor John George contacted.