A judge sealed more documents in the Laci Peterson case Friday, saying if information were released about police work it could harm an ongoing investigation and jeopardize Scott Peterson's chance of getting a fair trial.
Stanislaus County Superior Court Judge Al Girolami temporarily sealed an arrest warrant, a post-arrest search warrant and two addendums that list items taken during a search.
So information that led to the arrest of Scott Peterson will remain secret for now.
"It's limited to the use of both the district attorney and the defense and their investigators," Girolami said.
The matter will be reconsidered in a full hearing May 27. The Modesto Bee, the Contra Costa Times and the San Jose Mercury News have asked that the warrants be unsealed and available for public inspection.
The defense and the prosecution want the warrants to remain sealed. Under state law, search warrants must be returned to a court within 10 days and become public record unless a judge seals them.
During a brief hearing, defense attorney Mark Geragos said he has heard that the district attorney's office might seek a grand jury indictment.
He said he expects to have input in the questioning if that happens.
Chief Deputy District Attorney John Goold said he would not discuss his team's strategy, but noted that such input is routine and required by law.
Goold also said a grand jury proceeding -- where prosecutors lay out their case behind closed doors -- might expedite the process even though the testimony could not be used in a trial.
If the case does not go to a grand jury, prosecutors would call witnesses to support their charges during a preliminary hearing that would be open to the public. A judge would decide what charges would be brought to trial.
Scott Peterson, 30, has pleaded innocent to two counts of murder and is facing the death penalty. He has been held without bail since his arrest on April 18.
Geragos said he might try to get the case moved out of town before it goes to trial, to offset widespread publicity. Goold said he had never heard of a case being moved before a grand jury proceeding or preliminary hearing.
Girolami said an early move could backfire. "If we switch it to another community too early, that community will end up with the same publicity," he said.
A separate judge already has sealed eight search warrants in the high-profile case.
The Modesto Police Department used the warrants to search the Peterson home and vehicles, a warehouse where Scott Peterson kept supplies, and to obtain his phone records as well as a DNA sample.
Laci Peterson was eight months pregnant when she was reported missing Christmas Eve. Her body and that of her unborn son were found last month along the eastern shore of the San Francisco Bay.
Scott Peterson said he launched his boat from the Berkeley Marina in the East Bay on Dec. 24 and went fishing at Brooks Island, which is near where the bodies were discovered.
Geragos said he plans to prove that his client is innocent.
"Obviously, it's our position that the actual perpetrator is still out there," Geragos said.