The Bay Area man arrested in July for allegedly impersonating a CHP officer in Atascadero was arrested two additional times after posting bail.
Possession of child pornography is the latest charge brought against Mark Ryan Polini, 27, of San Jose.
Atascadero police detectives say that they discovered a digital file containing more than 1,900 images of child pornography on a laptop found inside what’s been described as his mock police car during a search.
Atascadero detectives arrested Polini on Friday on the child-pornography allegation after traveling to his home in Tulip Road in San Jose, police said.
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He was transported and booked into San Luis Obispo County Jail and held in lieu of posting $50,000 bail. He was no longer in custody as of Monday afternoon.
Polini was also arrested Aug. 2 on suspicion of possessing stolen property, police said, which included jewelry and coins. Details on his bail amount from that arrest were unavailable Monday.
On July 19, the Atascadero Police Department first arrested Polini after an officer pulled him over as he was driving an unmarked black 2001 Ford Crown Victoria near the Atascadero Shell Food Mart at East Front Street and San Gabriel Road.
Polini was wearing black pants, a black shirt and a CHP cap, police said.
Polini consented to a search of his car, police said, which revealed a loaded pistol, handcuffs, two badges, several air-soft pistols, holsters and an expandable police baton.Polini’s car was also outfitted with a dashboard camera, front and rear strobe lights, siren, mobile data computer, radios and an interior screen, police said.
Investigators determined that Polini had interacted with at least two people who thought he was a CHP officer in the San Jose area about one month before his July arrest in Atascadero.
In one incident, he followed a 17-year old girl home and allegedly told her about a traffic infraction he said she was involved in while speaking to her in her driveway, police said.Another was an interaction with a park ranger who questioned him, police said, and Polini reportedly told the ranger that he was an undercover CHP officer.