Leonarde Keeler First Polygraph Evidence in U.S. Courts February 2, 1935
Leonarde Keeler administers polygraph tests to two murder suspects, the first time polygraph evidence was admitted in U.S. courts. Date: February 2, 1935 Read more on Wikipedia → 📅 Other events on February 2 📅 Events on this day in 1935 📅 On This Day (Today)