News and Analysis
Five New Sentencing Policy Advisory Council Fiscal Impact Analysis Reports Available
Supplement: Victimization Costs in Bill Fiscal Impact Analyses
April 16, 2015

For the first time this year SPAC is incorporating victimization costs into its analyses. The victimization costs utilized are from the seminal study by the National Institute of Justice. See, McCollister, K.E., French, M.T., and Fang, H., “The Cost of Crime to Society: New Crime-Specific Estimates for Policy and Program Evaluation,” Drug and Alcohol Dependence, April 2010, pp. 98-109. This study provides the best available estimates of victimization costs. These costs are also used in the Illinois Results First cost-benefit analysis model SPAC is implementing. The attached supplement details the SPAC methodology for calculating and applying these costs for specific crimes using Illinois data.

Trends Analysis: Unlawful Use of a Weapons
September 19, 2014

Using descriptive statistics to analyze trends gives a very broad picture of changes in crime and punishment over time. This analysis compares descriptive statistics with legislative actions that changed sentences for unlawful use of weapon offenses. More complex statistical analysis and hypothesis testing would be needed to establish causal relationships between policy actions and changes in crime, incarceration, or recidivism rates over time. In order to verify a causal relationship the study would have to control for a variety of key factors by examining data from economic, public health, education, and other sectors.

Download the Trends Analysis (PDF) >>

 

Highlights

Infographic: Prison Resource Consumption by Offense Class

Infographic: Prison Resource Consumption by Offense Class

To illustrate how different offense classes consume resources, SPAC analyzed the data for the average number of exits in each class for 2011, 2012 and 2013.

IDOC Admissions, Exits, and Population Pie Charts

IDOC Admissions, Exits, and Population Pie Charts

IDOC Admissions, Exits, and Population Pie Charts highlights data from State Fiscal Year 2014 and June 30, 2014 Admissions data.

Supplement: Victimization Costs in Bill Fiscal Impact Analyses

Supplement: Victimization Costs in Bill Fiscal Impact Analyses

For the first time this year SPAC is incorporating victimization costs into its analyses. The victimization costs utilized are from the seminal study by the NIJ.

Offender Profiles

Offender Profiles

Who is the average inmate coming out of state prison? What crime did he or she commit? How long did he or she spend in the system? What was his or her experience? To begin answering these questions, SPAC analyzed state prison releases to create an average “profile” using the most often occurring characteristics, as well as average and median lengths of stay.