REDWOOD CITY (CBS SF/BCN) — San Mateo Sheriff’s deputies arrested a 25-year-old Redwood City man on suspicion of possession of child pornography, while also arresting his brother and girlfriend for allegedly trying to hide or destroy evidence in the case.

Deputies arrested Moises Vieyra Gallegos after the Sheriff’s Office received a tip from the Silicon Valley Internet Crimes Against Children Task Force in October and an investigation that led to a search warrant being served at his home.

READ MORE: Rain Helps Wash Away Fears Of Another Devastating Wildfire For Santa Rosa Couple

Investigators learned that Moises’ brother Ramon Vieyra Gallegos, 27, and girlfriend Alexia Lopez Reyes, 26, allegedly tried to conceal or destroy “vital evidence pertinent to this case,” sheriff’s officials said.

READ MORE: UPDATE: Phish Fan Injured After Being Fallen On at SF Chase Center Concert Describes Brush with Death

They were both arrested on suspicion of criminal conspiracy and concealing evidence, and along with Moises were all booked into county jail, according to the Sheriff’s Office.

Anyone with information about the case is asked to contact Detective Carryn Barker at (650) 363-4050 or cbarker@smcgov.org.

MORE NEWS: SF Fire Crews Battle 2-Alarm House Fire In Nob Hill

© Copyright 2021 CBS Broadcasting Inc. and Bay City News Service. All Rights Reserved. This material may not be published, broadcast, rewritten or redistributed.