external December 30, 2017 John DeCarlo, chairman of the criminal justice department and associate professor of criminal justice, discusses how the operating style of New Haven police has contributed to the decrease in New Haven’s homicide rate. https://www.nhregister.com/news/article/New-Haven-marks-lowest-homicide-number-in-decades-12464084.php news-all news-in-the-media year-2017 month-december