American Sherlock

Archival Summary & Scope

American Sherlock is a gripping historical true crime narrative recounting the birth of modern criminal investigation. It introduces Edward Oscar Heinrich, the "American Sherlock Holmes"—a pioneering forensic scientist who cracked thousands of cases over his 40-year career, beginning in 1930s Berkeley. Heinrich revolutionized evidence analysis during the Prohibition era, inventing tools such as blood spatter analysis, ballistics, and the use of fingerprints in court, while becoming one of the nation's first expert witnesses. Based on extensive research, the book illuminates Heinrich's brilliance and commanding presence, critically examining both the techniques that transformed American justice and the human experts who wielded them, including their serious flaws.