The Office of the Illinois State's Attorneys Appellate Prosecutor (ILSAAP) is a State agency that organizes a corps of experienced trial attorneys who assist in the prosecutions of criminal cases, especially on the appellate level.
[1] The ILSAAP, a judicial agency of the State of Illinois, is an office of persons, centering on licensed trial attorneys, who are available to assist in or carry out the prosecutions of criminal cases.
The elected county prosecutors of Illinois, who are called “state’s attorneys,” can request assistance from ILSAAP at any time.
By tradition and inclination, the state's attorney's offices of the counties immediately surrounding Chicago handle their own cases.
For example, after two inmates died in a jail in Iroquois County, Illinois, ILSAAP was asked to review the case.