A National Guard mobile lab will be stationed at the Oscars ceremony Sunday to test suspicious substances for biological or chemical agents.

"The National Guard is equipped to do it in 30 minutes so we don't need to delay the festivities if anything is found," Gov. Gray Davis said at a news conference Thursday. "We don't think anything will be found."

He said his chief of staff spoke with the head of the Academy of Motion Picture Arts and Sciences this week to discuss security at the awards show. He said there was no security reason for the show not to go on.

"If the academy wants to have the awards Sunday night I can say without fear of contradiction that it will be as safe and secure as any awards that have ever been held," Davis said.

The show will be held at the Kodak Theatre on Hollywood Boulevard.