Legal ethics experts disagree about whether Alex Kozinski, presiding judge of the 9th U.S. Circuit Court of Appeals, should recuse himself from a federal obscenity trial in Los Angeles after acknowledging that he maintained a personal Web site with sexually explicit photos.

Prosecutors at the Department of Justice, which is handling the case in the Central District of California, allege that Ira Isaacs, a film producer in Los Angeles, distributed criminally obscene videos involving extreme fetishes like bestiality and defecation.