The Initiation results data presented here reflects all of the arrests that came through the door of the State's Attorneys Office (SAO). Included in this data set are the defendant counts by initiation, their associated "topline" charge offense type, and year.

An initiation is how an arrest turns into a “case” in the courts. Most cases are initiated through a process known as felony review, in which SAO attorneys make a decision whether or not to prosecute. Cases may also be indicted by a grand jury or, in narcotics cases, filed directly by law enforcement (labeled "BOND SET (Narcotics)" in this data). Included in this data set are the defendant counts by initiation and year. This data includes felony cases handled by the Criminal, Narcotics, and Special Prosecution Bureaus. It does not include information about cases processed through the Juvenile Justice and Civil Actions Bureaus.

The disposition data presented in this report reflects the culmination of the fact-finding process that leads to the resolution of a case. Included in this data set are the defendant counts by race and disposition, their associated offense type, and year.

The disposition data presented in this report reflects the culmination of the fact-finding process that leads to the resolution of a case. Included in this data set are the defendant counts by gender and disposition, their associated offense type, and year.

The disposition data presented in this report reflects the culmination of the fact-finding process that leads to the resolution of a case. Included in this data set are the defendant counts by city/suburb and disposition, their associated offense type, and year.

The disposition data presented in this report reflects the culmination of the fact-finding process that leads to the resolution of a case. Included in this data set are the defendant counts by disposition, their associated offense type, and year.

The disposition data presented in this report reflects the culmination of the fact-finding process that leads to the resolution of a case. Included in this data set are the defendant counts by age and disposition, their associated offense type, and year.

On October 11, 2017, the Cook County Board repealed the Sweetened Beverage Tax Ordinance, effective December 1, 2017. This dataset is historical and no longer maintained.

This list is not meant to be exhaustive. There may be other products that meet the definitions of beverages for medical use, therapeutic nutritional meal replacements and weight reduction meal replacements. The Department of Revenue in no way endorses any of the products listed herein. For more information on the Sweetened Beverage Tax please see https://www.cookcountyil.gov/service/sweetened-beverage-tax

Employee payroll data for all Cook County employees excluding Forest Preserves, indicating amount of base salary paid to an employee during the County fiscal quarter. Salaries are paid to employees on a bi-weekly basis.
Any pay period that extended between quarters will be reported to the quarter of the Pay Period End Date. (e.g. If a Pay Period runs 02/21-03/05, that pay period would be reported in the Q2 period, as the end of the pay period falls in March - Q2)

The county fiscal quarters are:
Q1: December - February
Q2: March - May
Q3: June - August
Q4: September - November

The Employee Unique Identifier field is a unique number assigned to each employee for the purpose of this data set, that is not their internal employee ID number, and allows an employee to be identified in the data set over time, in case of a name change or other change. This number will be consistent within the data set, but we reserve the right to regenerate this number over time across the data set.

ISSUE RESOLVED: As of 4/19/2018 there was an issue regarding employee FY2016 and FY2017 payroll in which records were duplicated in the quarterly aggregation, resulting in inflated base pay amounts. Please disregard any data extracted from this dataset prior to the correction date and use this version moving forward.

KNOWN ISSUE: Several records are missing Bureau and Office information. We are working on correcting this and will update the dataset when this issue has been resolved.

For data prior to Fiscal Year 2016, see datasets at https://datacatalog.cookcountyil.gov/browse?tags=payroll

TIF District boundaries. TIF districts receive money from property taxes by utilizing increases in the value of properties located in the TIF. There is no tax rate for TIF districts. Instead, TIFs receive money based on tax rates generated by other districts’ tax levies. Money is allocated to the TIF based on the composite tax rate for properties in the TIF and the incremental value of properties in that TIF (when compared to values when the TIF was established.)

Projected expenses for Fiscal Year 2017. This data was released as part of the Fiscal Year 2018 Budget Preliminary Forecast. For more information see https://www.cookcountyil.gov/Budget