Challenging the HGN field sobriety tests in DUI defense

In this featured episode of The Science of Toxicology Testing podcast, Dr. Steven Rauchman—a board-certified ophthalmologist and seasoned medical expert witness—examines the scientific flaws behind the Horizontal Gaze Nystagmus (HGN) test commonly used in DUI cases. Dr. Rauchman explains how these roadside eye tests lack the medical validity required for the courtroom.