Law enforcement in Napa County traces its roots back to the days of Spanish rule and was formalized when California became a state in 1850. Since then, those who wear the badge have pursued the lawless in search of justice. Chuck Hansen, who started as a patrol officer, pioneered the use of forensic science at the Napa Police Department, collecting DNA evidence in 1974 that would become key in solving a murder decades later. And the killer known as "e; Willy the Woodcutter"e; was caught thanks to the expertise of Hal Snook of the Napa County Sheriff's Department. Napa police sergeant Todd Shulman brings to life the stories of those who played a part in solving some of wine country's most infamous crimes.