SAN MATEO, CA — “On February 7, 2026, at approximately 5:20pm, an SMPD officer conducted a traffic stop in the area of S. Norfolk St. and Royal Ave. on a compact SUV. As she approached the vehicle, she discovered it was occupied by four subjects, two adults (male and female) and two small children who were unsecured in the back seat. The driver identified himself as Antonio Aguilar Barrios and informed the officer his license was suspended and he was on probation. This was confirmed.
During a probation search, a box of ammunition was found inside a satchel Aguilar Barrios had been wearing. Initial inquiries of both adults regarding a possible firearm in the vehicle were denied. However, a loaded firearm was eventually found in a backpack on the front passenger floorboard. It was learned that the firearm located was registered to a person who has been deceased since 2007. At this time, it is unknown how the firearm came into possession. Both adults were arrested and charged with carrying a concealed, loaded firearm in a vehicle. Aguilar Barrios was also charged with additional offenses (see below). The children were released to family.
Aguilar Barrios and the female, identified as Mirna Penate, were arrested, transported, and booked into the San Mateo County Jail…