Police Records in Cook County, IL

Where to get them

Official government sources

The authoritative record holders — straight from the source, no middleman. Many are free; where a standard government fee applies, it’s shown.

• Cook County Sheriff's OfficeOfficial · Free

  Search Cook County, IL jail and inmate records through the county Sheriff's Office — individual-in-custody jail lookup.

• Cook County Court — Criminal CasesOfficial · Free

  Search Cook County, IL criminal court cases — charges, dispositions, and sentencing — through the county court's public case search — Circuit Court civil & criminal online case search.

• Illinois Criminal History CheckOfficial

  Request a name-based Uniform Conviction Information Act (UCIA) background check by submitting the subject's personal identifiers to the Illinois State Police, which returns publicly available conviction information for $16 by paper (or $10 electronically), with mailed results typically taking up to 30-40 days. Records are provided by the Illinois State Police Bureau of Identification, the official state criminal history repository.

  Up to 30–40 days$16Mail

• Get it in minutes — the official route takes Up to 30–40 days.

  A third-party service compiles this online — here’s how it compares to the official route above.

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  Official source

  Time

  Minutes, onlineFaster

  Up to 30–40 days

  Method

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  Mail

  Cost

  Report from $0.95*

  $16

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• Illinois Sex Offender RegistryOfficial · Free

  Look up registered sex offenders by name or address in the Illinois public registry, or nationwide via the Dru Sjodin National Sex Offender Registry (NSOPW) — free.

• Illinois Department of CorrectionsOfficial · Free

  Locate current inmates in Illinois prisons through the Illinois Department of Corrections inmate locator; use the Federal Bureau of Prisons locator for federal custody (free).