Jeffrey A. Roth is criminologist

Criminology

Criminology is the scientific study of the nature, extent, causes, and control of criminal behavior in both the individual and in society...

 and associate director for research at the University of Pennsylvania

University of Pennsylvania

The University of Pennsylvania is a private, Ivy League university located in Philadelphia, Pennsylvania, United States. Penn is the fourth-oldest institution of higher education in the United States,Penn is the fourth-oldest using the founding dates claimed by each institution...

's Jerry Lee Center of Criminology.

Roth's research has focused on juvenile crime trends, particularly the decrease in crime rates since 1993.

Roth has co-chaired, with Christopher S. Koper

Christopher S. Koper

Christopher S. Koper is the Director of Research for the Police Executive Research Forum , a police membership and research organization based in Washington, D.C. He holds a Ph.D...

, evaluation

Evaluation

Evaluation is systematic determination of merit, worth, and significance of something or someone using criteria against a set of standards.Evaluation often is used to characterize and appraise subjects of interest in a wide range of human enterprises, including the arts, criminal justice,...

s of federal laws and programs, including the Federal Assault Weapons Ban

Federal assault weapons ban

The Federal Assault Weapons Ban was a subtitle of the Violent Crime Control and Law Enforcement Act of 1994, a federal law in the United States that included a prohibition on the manufacture for civilian use of certain semi-automatic firearms, so called "assault weapons"...

, and the Community Oriented Policing Services

Community Oriented Policing Services

The Office of Community Oriented Policing Services is an agency within the United States Department of Justice. COPS was established through a provision in the 1994 Violent Crime Control and Law Enforcement Act. Since 1994, COPS has provided $11.3 billion in assistance to state and local law...

(COPS) program. Roth has also evaluated many state and local crime reduction programs.

Jeffrey A. Roth served as director on the National Academy of Sciences

United States National Academy of Sciences

The National Academy of Sciences is a corporation in the United States whose members serve pro bono as "advisers to the nation on science, engineering, and medicine." As a national academy, new members of the organization are elected annually by current members, based on their distinguished and...

panel on Understanding and Preventing Violence.