Investigations

Investigations Unit

The Investigators are responsible for the detailed investigation of adult and juvenile criminal offenses. They investigate drug crime activity and conduct thorough follow-up investigations of cases brought to the attention of the Department, including:

  • Identifying, apprehending and assisting in the prosecution of criminal offenders
  • Locating witnesses
  • Collecting physical evidence
  • Recovering property
  • Preparing cases for court

The investigators are responsible for tracking crime patterns and collecting and disseminating intelligence information to the Patrol Division.

Deputy Chief of Investigations: Robert Petersen 

Detective: Justin Meister

Detective: Joel Frias


South Suburban Major Crimes Task Force (SSMCTF)

The mission of the South Suburban Major Crimes Task Force is to provide comprehensive investigative services to all participating member agencies. These services include, but are not limited to: major drug related violent crimes including homicides, non-parental kidnappings, and other exceptionally heinous crimes when requested to do so by the Police Chief of the member agency with the approval of the Board of Directors. 

The SSMCTF, under the Command of the Cook County Sheriff's Police Department and the Illinois State Police, has the responsibility of supervising 54 south suburban Police Departments who have assigned approximately 150 investigators. These members investigate real or suspected violent crimes which necessitate a substantial commitment of resources for a prolonged period of time, or which require the application of complex or unusual investigative techniques and expertise. 

National Center for Missing & Exploited Children

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