U.S. flag

An official website of the United States government, Department of Justice.

NCJRS Virtual Library

The Virtual Library houses over 235,000 criminal justice resources, including all known OJP works.
Click here to search the NCJRS Virtual Library

Deterrence Study of the Death Penalty in Illinois, 1933-1980

NCJ Number
94996
Journal
Journal of Criminal Justice Volume: 12 Issue: 4 Dated: (1984) Pages: 367-377
Author(s)
S H Decker; C W Kohfeld
Date Published
1984
Length
11 pages
Annotation
The study analyzes the effect of executions and the death penalty on homicides in Illinois. A forty-eight year time series (1933-1980 inclusive) is used as the basis for this analysis.
Abstract
The first series of results are presented in a graph of executions and homicides by year. A second portion of the analysis compares the mean homicide rates for three time periods -- years with executions, years when the death penalty was allowed but no executions were performed, and years in which the death penalty was abolished by the U.S. Supreme Court. No notable differences in homicide rates were observed for these three eras. Finally, a regression analysis was performed which included a lag structure and several relevant controls. The deterrence measure (executions) made no contribution to the variation in homicide rates. Thus, the authors conclude that there is no deterrent effect for the death penalty on homicides in Illinois. (Author abstract)