News and Analysis
2019 Average Felony Conviction Profiles
February 21, 2019

Sentencing policy is often driven by high-profile, extreme cases, but most of the individuals convicted in Illinois are not extreme. To focus the discussion on the more common cases, SPAC created these snapshots of average felony conviction in several offense categories. These 'Average Joe' profiles are the typical people that flow through the State's criminal justice system. Analysis of criminal history data shows that, out of every 100 convicted felons, 57 are sentenced to probation while 43 are sentenced to prison. This set of profiles covers offenders convicted of a felony. These profiles represent the broader criminal justice system, compared to an earlier examination of people's profiles who were released from prison in 2014.

Research Briefing: Illinois Misdemeanor Sentencing - Trends and Analysis
October 18, 2018

Policy work in the criminal justice arena often focuses on felonies, with the more serious or notorious offenses getting the bulk of the attention. The volume of misdemeanor arrests and dispositions far outstrips those for felony offenses, yet we know little about this kind of offender or how they are sentenced. Over half of the people in State prisons have a history of misdemeanor arrests and one or more convictions. However, most people arrested for or convicted of a misdemeanor do not go on to commit felonies. As with felonies, criminal history remains the most significant factor in determining the sentence imposed. The reader should bear in mind that many misdemeanors move into felony classification based on second or subsequent offenses. This report focuses on the offense characteristics, dispositions, criminal history, and demographics for 2017 arrests and dispositions and recidivism patterns for a 2014 group of misdemeanants. The report is organized by the decision points in the system and includes demographic analysis based on race, gender, and geographic region.

 

The Illinois Sentencing Policy Advisory Council's Cost Benefit Analysis 2018 Report on the High Cost of Recidivism
July 24, 2018

The Illinois Sentencing Policy Advisory Council's Cost Benefit Analysis 2018 Report on the High Cost of Recidivism

The Illinois Sentencing Policy Advisory Council (SPAC) released our 2018 updated cost benefit analysis report on the high cost of recidivism and the supplement that fully explains our methodology. SPAC adopted this model and requested technical assistance from the Pew-MacArthur Results First Initiative because the model has been tested and accepted in the legislative and budgeting processes in Washington State for over 18 years, it was free, and it came with a multi-disciplinary technical assistance team. Using this model allows us to apply the best national research to Illinois-specific crime data. More importantly, the model is the best tool to determine the efficient use of tax dollars to minimize the risk that crime will occur.

 

Highlights

Prison Population Animation Admission and Length of Stay

Prison Population Video

View the short SPAC Prison Animation to understand how admissions and length of stay determine the size of the prison population.

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 2015, 2016 and 2017.

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 2018 and June 30, 2018 Admissions data.

Average Felony Conviction Profiles

Average Joes Convictions-ALL.pdf

This set of profiles covers offenders convicted of a felony. These profiles represent the broader criminal justice system, compared to an earlier examination of people’s profiles who were released from prison in 2014.

Offender Profiles

Offender Profiles

This set of profiles covers offenders convicted of a felony. These profiles represent the broader criminal justice system, compared to an earlier examination of people’s profiles who were released from prison in 2014.