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SBSD - Rancho Cucamonga Police Department
Friday July 19th, 2019 :: 10:46 a.m. PDT


Deputies and K9 Smokey recover drugs and a loaded firearm during a traffic

DATE:July 16, 2019/ 7:00 p.m.

INCIDENT:HS 11370.1- Possession of a Controlled Substance While Armed
PC 29800 (a) (1) - Felon in Possession of a Firearm
PC 30305 (a) (1) - Unlawful Own of Ammunition
PC 496 (a) – Possession of Stolen Property
PC 12022.1 – New Offense While Out on Bail
HS 11370 (A) – Possession of a Controlled Substance

LOCATION:Helms Ave / Devon St, Rancho Cucamonga

SUSPECT:Chester Gumber III, 40-year-old resident of Rancho Cucamonga
Pamela Martinez, 43-year-old resident of San Dimas


While on patrol, deputies from the Rancho Cucamonga Police Department observed a suspect related to continued narcotics activity driving west on Devon St. Deputies conducted a traffic stop and identified the driver as Chester Gumber III and the passenger as Pamela Martinez. Rancho Cucamonga Police Department’s narcotics detectionK9 Smokey was deployed and alerted to narcotics inside the vehicle. When deputies searched the vehicle, they found methamphetamine and a loaded firearm with additional ammunition inside a satchel. Deputies located additional methamphetamine inside Martinez’s purse. Upon further investigation, deputies learned the firearm had been reported stolen in 2017. Both Gumber III and Martinez were arrested and booked at the West Valley Detention Center.

Anyone with information regarding this investigation is urged to contact the Rancho Cucamonga Police Department. Callers wishing to remain anonymous can call the We-tip Hotline at 1-800-78-CRIME (27463) or you may leave information at

Refer:Deputy Derek Pedersen
Station:Rancho Cucamonga Police Department
Phone No. (909)477-2800

John McMahon, 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

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