An obscenity trial in Los Angeles Federal Court was suspended after it was revealed that presiding 9th Circuit Chief Judge Alex Kozinski posted sexually explicit photographs and videos on a Web site that he has since blocked from the public, The Los Angeles Times reported.

Kozinski, 57, claims he had no idea that the graphic materials, which included a photo of naked women painted to look like cows and a video of a man "cavorting with a sexually aroused farm animal," were available to the public, The Times reported.

Kozinski is presiding over the trial of Los Angeles filmmaker Ira Isaacs, who is accused of violating U.S. obscenity laws by making pornographic films depicting extreme fetishes, including bestiality and defecation. Jurors were set to view hours of allegedly obscene videos during trial.

Kozinski told The Times that some of the material was inappropriate, while others he claimed were meant as jokes. "Is it prurient? I don't know what to tell you," he told the the paper. "I think it's odd and interesting. It's a part of life."

The judge, considered a judicial conservative, was appointed to the bench at age 35 by Ronald Regan, making him the youngest federal appeals court judge in the country. He has a reputation for championing free speech and the First Amendment.

Before it was blocked, the site alex.kozinski.com contained extensive sexually explicit material, The Times claims, including images of masturbation and public sex. "There was a slide show striptease featuring a transsexual, and a folder that contained a series of photos of women's crotches as seen through snug fitting clothing or underwear. There were also themes of defecation and urination, though they are not presented in a sexual context," Times reporter Scott Glover wrote.

"People send me stuff like this all the time," Kozinski told The Times. He said he saves items he finds interesting or amusing that he might later send to friends. But he said that he must have accidentally uploaded some of the more explicit images to his server while trying to upload something else.