William Leo is a Forensic Identification Specialist with the Scientific Services Bureau of the Los Angeles Sheriff’s Department and serves as the Crime Scene Investigation / Latent Print Section’s training officer. Bill began his career with the Latent Print Section of the Los Angeles Police Department in 1976. Bill possesses a Master of Science Degree in Criminology from Indiana State University, a B.S. Degree in Criminal Justice from The Union Institute, and a lifetime teaching credential in Police Science. Bill is on the faculty of Rio Hondo College and Long Beach City College. Bill has lectured extensively and has provided expert witness testimony on fingerprint identification and the scientific and historical foundation of fingerprint evidence. Bill is a Past-President of the Southern California Association of Fingerprint Officers and is a Board Certified Latent Print Examiner through the International Association for Identification.