Full Notification

During a verbal altercation, an adult male suspect struck an adult victim in the face with a firearm, then punched and kneed them while they were on the ground. The suspect was arrested shortly after for assault with a deadly weapon, multiple firearms offenses, DUI, and possession of a controlled substance.
 
San Mateo, CA – On September 7, 2025, at 3:08 p.m., San Mateo Police Department officers responded to the 1600 block of Roberta Drive following a report of an assault that had just occurred.
The adult victim reported being struck in the mouth with a firearm during a verbal altercation. After the initial assault, the suspect, identified as 39-year-old Jose Alvaradovasquez, allegedly punched and kneed the victim while they were on the ground.

Responding officers arrived shortly after the call and observed Alvaradovasquez entering a vehicle. As he began to drive away, officers conducted a traffic stop. During the stop, Alvaradovasquez was found to be in possession of two rounds of 9mm ammunition and suspected methamphetamine. He was placed under arrest for driving under the influence.

A search of the immediate area led officers to an unserialized firearm, a magazine, and additional ammunition hidden in nearby bushes approximately 10 feet from where Alvaradovasquez was first seen.
Through the course of the investigation, officers established probable cause to arrest Alvaradovasquez for the following offenses:

• Assault with a deadly weapon
• Possession of a loaded firearm in public
• Possession of an unserialized firearm
• Concealing evidence
• Possession of a controlled substance
• Possession of a loaded firearm while in possession of suspected methamphetamine
• Driving under the influence
• Driving with a suspended license

Alvaradovasquez was booked into San Mateo County Jail on multiple felony charges.
 
ARRESTED
Jose Alvaradovasquez, 39-year-old San Mateo resident
 
CHARGES:
PC 245 (A) (2)-Assault with a Firearm
HS 11370.1 (A)-Possessing a Controlled Substance While Armed with a Loaded Firearm
HS 11377 (A)-Possession of a Controlled Substance
PC 25400 (A) (1)-Carry a Concealed Weapon in a Vehicle
C 25850 (A)-Carry a Loaded Firearm on Person
VC 23152 (F)-DUI drug
PC 29180 (C)-Own a Firearm Without a Serial Number
PC 135-Conceal Evidence