MILLBRAE -- A Millbrae high school teacher was arraigned and remanded into custody Tuesday morning on drug and pornography charges in connection with his videotaping of girls in the main bathroom of Mills High School, a San Mateo County deputy district attorney said.

David Lista, 35, an English teacher and student body advisor, appeared today in a South San Francisco courtroom with his attorney Elizabeth Grossman and pleaded not guilty, Chief Deputy District Attorney Steve Wagstaffe said.

Lista is facing three felony and two misdemeanor charges in connection with pornography found at his home and the alleged videotaping of girls in the bathroom. He is also facing one felony charge for drugs that were allegedly found at the home.

Lista was previously out on $10,000 bail after being arrested March 6 for a misdemeanor drug charge, but bail was raised to $125,000 today at the request of prosecutors, Wagstaffe said.

Millbrae police arrested Lista after executing a search warrant on his Belmont home and uncovering what is believed to be methamphetamine and other drug paraphernalia, according to Millbrae police Sgt. John Aronis.

Police descended on his home in an effort to find corroborating evidence linked to graphic videos allegedly taken at the Millbrae high school.

According to Aronis, Lista confessed to police about his alleged role in the illegal filming.

Police began investigating Lista after a San Mateo High School District tech coordinator identified a server that was overloaded, district Superintendent David Miller said around the time of Lista's arrest. The tech coordinator went to the site and discovered the photos, Miller said, and immediately alerted district officials and police of the incident.

Police believe Lista installed cameras through the wall of his classroom. Miller said Lista's classroom closet area borders on the girls' bathroom.

It appears that the illicit filming took place for about a month or two, according to Aronis. The video, which appears to be of good graphic quality, is being forensically analyzed.

The girls' bathroom where the filming allegedly took place was repainted and broken tiles were replaced immediately following the incident, according to Miller.

A preliminary hearing is scheduled for Lista on July 29 at 9 a.m., Wagstaffe said.