Receive alerts from your local agencies
...or text your ZIP CODE to 888777 for mobile alerts

Full Notification

SBSD - Rancho Cucamonga Police Department
Friday November 18th, 2022 :: 06:09 p.m. PST


Rancho Cucamonga Man Arrested for Multiple Firearm Charges

DATE/TIME: November 18, 2022, at approximately 11:33 a.m.

INCIDENT: Felon in Possession of a Firearm, Possession of an Assault Rifle, Possession of a Silencer, Possession of an Extended Magazine, and Manufacturing a Short Barrel Rifle. 

LOCATION: 9900 block of Alder Street, Rancho Cucamonga
10000 block of Arrow Route, Rancho Cucamonga 

SUSPECT(S): Joseph Tarin, 40-year-old male resident of Rancho Cucamonga 

VICTIM(S): State of California

SUMMARY: On Friday, November 18, 2022, at approximately 11:33 a.m., deputies from the Rancho Cucamonga Station’s Multiple Enforcement Team (MET) served a search warrant at a residence located in the 9900 block of Alder Street in Rancho Cucamonga. Deputies found 40-year-old Joseph Tarin on the property and detained him. During the search, three assault rifles, extended magazines, and multiple rifle suppressors were located. 

Through investigation, deputies developed information Tarin may have manufactured assault rifles at a storage unit in the 10000 block of Arrow Route in Rancho Cucamonga. Deputies subsequently served an additional search warrant at the storage unit and located evidence of manufacturing assault rifles. Tarin was found to be a convicted felon and was booked at the West Valley Detention Center in Rancho Cucamonga for felon in possession of a firearm, possession of an assault rifle, possession of a silencer, possession of an extended magazine, and manufacturing a short barrel rifle. 

Anyone with information regarding this incident is urged to contact Deputy Ronald Williams of the Rancho Cucamonga Station at (909) 477-2800. Callers wishing to remain anonymous are urged to call the We-Tip Hotline at 1-800-78-CRIME (27463), or you may leave information on the We-Tip Hotline at 

Refer: Deputy Ronald Williams

Station: Rancho Cucamonga Station

Phone No. (909) 477-2800

Case No. 112213679 

SHANNON D. DICUS, Sheriff-Coroner
San Bernardino County Sheriff-Coroner Department

SBSD - Rancho Cucamonga Police Department
10510 Civic Center Dr
Rancho Cucamonga, CA 91730

Emergency: 9-1-1
Non-emergencies: 909-477-2800

Navigate & Discover