Watch episode 1 of False Positive: www.youtube.com/watch?v=kiw1Zv-B02c Robert Lee Stinson's trial shows how the judicial system lacks an effective filter to catch bad science before it's used to convict innocent people. Help us make our channel more ambitious by joining the Vox Video Lab. Becoming a member brings you closer to our work and gets you exclusive perks, like livestream Q&As with your favorite Vox creators. Learn more at bit.ly/video-lab Subscribe to our channel! goo.gl/0bsAjO False Positive is a 30-minute documentary, split into three episodes and produced by Vox Senior Producer Joss Fong, focusing on the conviction of Robert Lee Stinson. Stinson spent 23 years in a Wisconsin prison for murder after two forensic odontologists concluded that his teeth matched bite marks found on the body of the victim. False Positive looks at the structural and cultural factors that have made the U.S. criminal justice system susceptible to unreliable forensic science, and that continue to impede progress toward more reliable methods today. Next week we'll find out who really killed Ione Cychosz. To go even deeper into the series, become a member of the Vox Video Lab, for exclusive access to a live Q&A following the premiere of the final episode on February 6, and additional behind-the-scenes details on the series. www.vox.com/join Vox.com is a news website that helps you cut through the noise and understand what's really driving the events in the headlines. Check out www.vox.com. Watch our full video catalog: goo.gl/IZONyE Follow Vox on Facebook: goo.gl/U2g06o Or Twitter: goo.gl/XFrZ5H