But Prosser issued a statement late Saturday saying, "Once there's a proper review of the matter and the facts surrounding it are made clear, the anonymous claim made to the media will be proven false. Until then I will refrain from further public comment."

Bradley declined comment, telling WPR, "I have nothing to say."

The sources say Capitol Police Chief Charles Tubbs was notified of the incident. One source says Tubbs came in to meet with the entire Supreme Court about this matter. Tubbs, contacted by WPR, declined to comment but on Saturday he told WPR he would issue a statement Monday.

Sources also say the matter was called to the attention of the Wisconsin Judicial Commission, which investigates allegations of misconduct involving judges. James Alexander, executive director of the commission, said Friday "we can neither confirm nor deny" the incident was under investigation.

"The commission hasn't given me any authority to make any confirmation," he said.

Amanda Todd, spokeswoman for the court, sent an email to the full court Friday informing them of the Center's media inquiries on the matter. Reporters also contacted each justice individually. As of the end of day Friday, none of the justices commented.