Oro Grande Woman Arrested for Allegedly Drugging Boyfriend with Fentanyl and Oxycodone
ORO GRANDE, Calif. (VVNG.com) — A 47-year-old woman was arrested following an investigation that revealed she allegedly drugged her boyfriend with fentanyl and oxycodone in an incident that occurred in October, according to a written statement from the San Bernardino County Sheriff’s Department.
On Friday, December 12, 2025, at 7:42 a.m., deputies from the Victor Valley station responded to a report of a poisoning at a residence in the 22200 block of National Trails Highway in Oro Grande.
Deputies contacted an adult male victim who reported that he had been poisoned with fentanyl during a prior incident in October.
During the investigation, deputies learned the victim had been in a relationship with the suspect, identified as Kristy Oliphant, a resident of Oro Grande.
According to the release, Oliphant allegedly visited the victim’s residence and administered fentanyl and oxycodone without his knowledge. Deputies said the victim became aware the narcotics had been administered during an argument between the two.
Oliphant was arrested on suspicion of attempted murder (PC 664/187(A)) and booked at the High Desert Detention Center, where she remains in custody on $1,000,000 bail.
Anyone with information about the investigation is asked to contact the Victor Valley station at (760) 552-6800 or Sheriff’s Dispatch at (760) 956-5001. Callers wishing to remain anonymous can call the We-Tip Hotline at 1-800-78CRIME (27463) or submit tips online at www.wetip.com.
