Broward, Fla., Circuit Judge Leroy Moe ruled Monday that Motorola willfully violated court orders during a $10 billion trade secrets trial late last year. The ruling could expose the electronics giant to millions in fines, attorney fees and trial costs.

Judge Moe agreed with lawyers for SPS Technologies, which sued Motorola, that during the eight-week trial which ended with a hung jury in November, Motorola placed experts on the stand who previously had read other witnesses’ testimony. That violated the witness sequestration order he imposed at the start of the trial and prejudiced the plaintiff’s case, he said.