SAN CARLOS (CBS SF) — Detectives with the San Mateo County Sheriff’s Office on Tuesday morning arrested a San Carlos man on suspicion of possessing and distributing child pornography, according to authorities.

A press release issued by the San Mateo County Sheriff’s Office stated that at around 7 a.m. Tuesday morning, 33-year-old San Carlos resident Brian Robertson was taken into custody at a private residence.

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Robertson was the subject of a long investigation by the San Mateo County Sheriff’s detective after the bureau received a cyber-tip within the past year that Robertson was involved in the distribution of child pornography.

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On Tuesday, detectives served a search warrant at a San Carlos home and arrested Robertson. This investigation is ongoing and detectives believe that this is an isolated incident.

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Anyone with information about the suspect and any possibly related crimes is asked to contact the San Mateo County Sheriff’s Office.