Oct 7, 2012Chris Leibig and Steve Shannon speak about the Fourth Amendment Updated: Jul 22, 2021View articles:Newsmaker: GPS Tracking of Suspected Criminals Raises Fourth Amendment Concerns. By Terry Hill. The National Press Club.GPS Tracking and Fourth Amendment Rights. By David Hodes. The National Press Club.National Press Club To Host "NEWSMAKER" Media Briefing On GPS Tracking And Fourth Amendment Rights With Attorneys Christopher Leibig And Steve Shannon. The PR Newswire, The Street.