On November 14, 2013, Professor Dervan was called to testify before the United States House of Representatives' Committee on the Judiciary Over-Criminalization Task Force. Available here is his written testimony. In his written testimony, Professor Dervan examines the phenomenon of...

The Gulf oil spill was the worst environmental disaster in U.S. history, and will be the most significant criminal case ever prosecuted under U.S. environmental laws. The Justice Department is likely to prosecute BP, Transocean, and Halliburton for criminal violations of the Clean Water Act and...

In criminal cases the task of the judge is to transform the uncertainty about the facts into the certainty of the verdict. In this experiment we examine the relationship between evidence of which the strength is known, subjective probability of guilt and verdict for abstract cases. We look at...

Research on crime in the late 20th century has consistently shown, that despite the public rhetoric, immigrants have lower rates of involvement in criminal activity than natives. The earliest studies of immigration and crime conducted at the beginning of the 20th century produced similar...

Child maltreatment, which includes both child abuse and child neglect, is a major social problem. This paper focuses on measuring the effects of child maltreatment on crime using data from the National Longitudinal Study of Adolescent Health (Add Health). We focus on crime because it is one of...

This paper argues that terrorism, beyond its immediate impact on innocent victims, also raises the costs of crime, and therefore, imposes a negative externality on potential criminals. Terrorism raises the costs of crime through two channels: (i) by increasing the presence and activity of the...

Using data from three waves of Add Health we find that being very attractive reduces a young adult's (ages 18-26) propensity for criminal activity and being unattractive increases it for a number of crimes, ranging from burglary to selling drugs. A variety of tests demonstrate that this result...

Child maltreatment, which includes both child abuse and child neglect, is a major social problem. This paper focuses on measuring the effects of child maltreatment on crime using data from the National Longitudinal Study of Adolescent Health (Add Health). We focus on crime because it is one of...

Using data from three waves of Add Health we find that being very attractive reduces a young adult's (ages 18-26) propensity for criminal activity and being unattractive increases it for a number of crimes, ranging from burglary to selling drugs. A variety of tests demonstrate that this result...