Scott Decker is an expert in criminology, policing and corrections.

Decker's research primarily focuses on criminal justice policy, gangs, violence and offenders' perspectives.

He is an Emeritus Professor in the School of Criminology and Criminal Justice.

The Harry Frank Guggenheim Foundation, the National Science Foundation, the U.S. Department of Justice, the U.S. Department of Health and Human Services, and the National Institute on Drug Abuse have funded his research.