Based on the latest statistics compiled by the Federal Bureau of Investigation (FBI), the national violent crime arrest rate declined 38 percent overall between 1988 and 2018, but the steepest declines were observed among youth ages 10 to 14 (–53%) and 15 to 17 (–54%). The arrest rate for 18-20 year-olds dropped 47 percent while the arrest rates for adults ages 21-24 and 25-49 declined 42 percent and 23 percent, respectively.
Baumer, Eric P. and Kevin T. Wolff (2014). Evaluating Contemporary Crime Drop(s) in America, New York City, and Many Other Places. Justice Quarterly, 31(2): 5-38. This paper describes and evaluates some fundamental facts about the contemporary crime drop, summarizes the major explanations that have been offered for it, and assesses the validity of these explanations in [...]
Butts, Jeffrey A. (2012). Violent Crime Rates Continue to Fall Among Juveniles and Young Adults. Research and Evaluation Data Bits [2012-06]. New York, NY: Research and Evaluation Center, John Jay College of Criminal Justice, City University of New York. Since the mid-1990s, violent crime rates fell among young juveniles (under age 15) and older adults (over age [...]