A man who enlisted his son to help him break into the La Jolla offices of a former employer to find out what it had bid on a federal building project pleaded guilty today to conspiracy to steal trade secrets. John K. Norris faces up to 10 years in federal prison and a $250,000 fine when he is sentenced Jan. 28 by U.S. District Judge M. James Lorenz. On April 8, the hallway camera captured John K. Norris entering the hallway and janitor's closet, but he shielded his face with a piece of cardboard. The Imperial Group's surveillance system, however, captured him rifling their files.

