DeCarlo, is the former chief of police in Branford, Conn. During his time there, he was known for instituting a more “evidence based” and “community-oriented” approach to policing. For this, FBI Director Robert Mueller called him “an inspiration to others.” DeCarlo’s major fields of research include the use of force by police officers and the weapons focus effect. In 2009, he authored a chapter on Amadou Diallo in African Americans and Criminal Justice: An Encyclopedia (Greenwood Press: New York).