Lawrence Police Department: Heroes Wear Blue pictorially chronicles the history of the department from its inception through its first century to the present day. A compelling visual tour, not only for police and local historians, this collection offers a glimpse of society and how it has changed. Featuring the first known police officer in Lawrence, Massachusetts, as well as the Lawrence police officers who served in the Civil War in uniform, this volume also provides a rare glimpse of vintage police equipment that is now unlawful to use.