Dover400's "Voices of Dover" oral history video series continues this week with an interview with retired Dover Police Officer and historian Mark Leno. Leno shares insights into the city's history and his experiences serving 26 years on the police force. In his interview, Leno discusses Dover's textile mill history, urban renewal efforts in the 1960s and 1970s, and his passion for researching and writing books about local history. He also reflects on his time walking the beat downtown as a new officer in the 1980s and helping launch community policing efforts.