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Crime, Violence, and Justice

In 2018, 3.3 million Americans (ages 12 and older) were victims of a violent crime and in 2016 (the most recent year data is available) there were over 6.6 million persons in the adult correctional system. In 2018, over 728,000 arrests were made of persons under 18. My research has examined predictors of youth delinquency, how criminal behavior changes as youth age, the impact of youth criminal justice involvement on long-term outcomes, as well as approaches to preventing victimization.

In addition, there are over 765,000 law enforcement officers working in the U.S. today whose responsibility is to help keep communities safe. I have examined factors that impact police officer mental health and well-being and how the science suggests law enforcement agencies can foster better health among their employees so that the police can be more effective at their jobs.

Monographs

The Science of Gun Policy: A Critical Synthesis of Research Evidence on the Effects of Gun Policies in the United States, Second Edition (2020)

The Science of Gun Policy: A Critical Synthesis of Research Evidence on the Effects of Gun Policies in the United States (2018)

The Role of Technology in Improving K–12 School Safety (2016)

Journal Publications

Contemporary Police Stress: The Impact of the Evolving Socio-Political Context (2019)

Suicide prevention in US law enforcement agencies: A national survey of current practices (2018)

Violence, guns, and suicide in New Orleans: results from a qualitative study of recent suicide decedents (2018)

Linking specialization and seriousness in criminal careers (2014)

Associations between abstinence in adolescence and economic and educational outcomes seven years later among high-risk youth (2011)

How perceptions of mortality and HIV morbidity relate to substance abuse problems and risky sexual behaviors among former juvenile offenders (2010)

Seven-year life outcomes of adolescent offenders in Los Angeles (2009)

A developmental approach for measuring the severity of crimes (2009)

Substance use and delinquency among fifth graders who have jobs (2009)

Seven years later: Developmental transitions and delinquent behavior for male adolescents who received long-term substance treatment (2009)

Racial differences in marijuana-users’ risk of arrest in the United States (2006)

How criminal system racial disparities may translate into health disparities (2005)

Research Tools

RAND Program Evaluation Toolkit for Countering Violent Extremism (2017)