Law enforcement officers trampled on the Fourth Amendment when they secretly recorded some of the statements made by five suspects being held in a police vehicle, a federal judge has ruled. In a written opinion Thursday, U.S. District Judge Robert W. Gettleman suppressed the initial portion of a conversation that the suspects held while sitting in the back of a police transport van. Chicago police and agents from the federal Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) recorded the conversation without …