Fairfield police went to a home in the 5000 block of Oakbrook Circle on Wednesday 17 January 2018 after a report of four men fighting in the front yard, one of them carrying a handgun.[1] Officers detained two of the men and found a THC extraction laboratory, also called a honey oil or hash oil lab, inside the house.[1]

Robert Olivieri, 30, and Nicholas Olivieri, 22, both of Fairfield, were arrested on narcotics and firearm charges and booked into the Solano County Jail.[1] Officers also confiscated cocaine, methamphetamine, Xanax tablets, psilocybin mushrooms, LSD and PCP from the home.[1]

Nicholas Olivieri was arraigned in Solano County Superior Court on Friday 19 January and pleaded not guilty to a set of drug-related charges, including manufacturing methamphetamine.[2] He remained in jail on bail of $123,333 and was due back in court on 1 February for a readiness conference, while Robert Olivieri had been released from custody.[2]

Police said legal medical and recreational marijuana in California had increased the number of explosions from making marijuana concentrates.[1] The department said honey oil labs are prohibited and that convictions carry sentences of up to seven years in prison.[1]