By Linda A Teplin, Nicholas S Meyerson, Jessica A Jakubowski, David A Aaby, Nanzi Zheng 1, Karen M Abram, Leah J Welty

In adulthood, 41.3% of males and 10.5% of females perpetrated firearm violence. Depending on the type of behavior during adolescence, between 44% and 67% of participants who had been involved with firearms before age 18 years perpetrated firearm violence as adults. All but 1 type of involvement before age 18 years was associated with firearm perpetration in adulthood . Notably, participants who had owned a firearm during adolescence had 9.0 (95% CI, 4.5-18.2; P < .001) times the odds of perpetrating firearm violence in adulthood. Victimization was also significant: adolescents who had been threatened with a weapon or injured by gunshot had 3.1 (95% CI, 2.0-4.9; P < .001) and 2.4 (95% CI, 1.2-4.9; P = .01) times the odds of perpetrating firearm violence in adulthood, respectively.

JAMA Network Open. 2021;4(2):e2034208. doi:10.1001/jamanetworkopen.2020.34208

By Christopher S. Koper

Controlling gun crime continues to be a difficult challenge for policymakers and practitioners in the United States. With an estimated 258 million guns in private hands and millions more produced each year, there are many sources and means through which offenders can obtain firearms despite legal restrictions on gun purchasing and ownership by convicted felons, juveniles, and other high-risk groups. In order to better understand the workings of illicit gun markets—and particularly the rapid diversion of guns from the retail market into criminal channels—this study utilizes a decade’s worth of data on handgun sales in the state of Maryland and subsequent recoveries of those guns by police in order to identify the characteristics of firearms, sellers, buyers, and sales transactions that predict whether a gun is used in crime subsequent to purchase. The study provides some of the most sophisticated evidence to date on crime use risks associated with high-risk buyers, problem gun dealers, preferred crime guns, purchases involving multiple guns, and other suspected trafficking indicators. The study is based on three sets of analyses: 1) analysis of 235,011 handgun sales in Maryland from 1990 through October 1999 and 7,575 recoveries of those guns reported by police throughout the nation to the federal Bureau of Alcohol, Tobacco, Firearms, and Explosives (ATF) from 1990 through March 2000; 2) analysis of 71,956 handgun sales in the Baltimore metropolitan area from 1994 through October 1999 and 1,850 recoveries of those guns reported by Baltimore police to ATF from 1994 through March 2000; and 3) analysis of 48,039 handgun sales in the Maryland counties of the Washington, D.C. metropolitan area from 1994 through October 1999 and 529 recoveries of those guns reported by D.C. police to ATF from 1994 through March 2000.

Philadelphia: Jerry Lee Center of Criminology University of Pennsylvania, 2007. 96p.

By Small Arms Survey

As demonstrated in the Samll Arms Survey 2010, addressing the factors that trigger conflicts and fuel gang vioence has a much more lasting---and constructive---impact than simply incarcerating or marginalizing members of street gangs and armed groups.' Executive Director, United Nations Office on Drugs and Crime. `The Small Arms Survey 2010 provides further evidence that efforts to address gangs and gangs violence must encompass a wide range of measures---including not only targeted law enforcement tactics and illicit gun interdiction, but also prevention and youth development initiatives. In the long term, we must address the factors that lead young people to join gangs in the first place.'

Cambridge, UK: Cambridge University Press, 2010. 352p.