Ventura County Sheriff Department – Incident Press Release On December 20, 2018, Detectives from the Ventura County Sheriff’s Office Special Investigations Unit/Narcotics concluded a narcotics sales investigation into an organized heroin distribution organization who was involved in the sales of heroin to residents of Ventura County.  During the investigation, detectives identified Isidro Marquez Luna of … Continue reading Simi Valley Among Cities Effected by Heroin Distribution Organization