BUENA PARK The president of the Buena Park School District school board has been arrested on suspicion of trafficking child pornography, Fontana police said.

Dennis Brian Chambers, 50, was arrested Wednesday at his Buena Park home culminating a six-month-long investigation.

Detectives from multiple agencies worked together to investigate “a group of individuals that were distributing child pornography over the internet,” Fontana police said in a statement.

Chambers was one of those identified in the group. Investigators went to his home in the 8000 block of Taylor Street with a search warrant.

“A search of the residence revealed an electronic storage device, which contained thousands of child pornographic videos and images,” the police statement said.

Greg Magnuson, the district’s superintendent, released a statement saying the news was “shocking and greatly disturbing” and reassuring that the district is fully supportive of the police investigation.

“As an elected official, Mr. Chambers was always accompanied by adult staff members whenever he was in contact with students while visiting our campuses,” the statement said. “Nevertheless, as this case proceeds, he will be asked to refrain from attending school functions or being on any of our school campuses.”

A fellow board member echoed the shock of the news.

“We’re all beside ourselves,” Rochelle Smith, a fellow board member, said Thursday afternoon. “The most important thing is the safety of our kids. We’re doing our due diligence and communicating with the community.”

Smith said the board would likely be having a closed meeting Thursday night, April 20 to determine what to do given the president’s situation. Chambers’ term is through 2018.

Chambers was arrested at the residence and later booked at the Santa Ana Central Jail. He is being held in the Theo Lacy Facility in Orange County in lieu of $250,000 bail. He is scheduled to appear in court on Friday.

Anyone with any information about this case was asked to call Detective Hale of the Fontana Police Department’s ICAC Task Force at 909-356-7156.