Adult Investigations Unit

The Adult Investigations Unit investigates major crimes such as murder, robberies, sexual assaults, financial and other crimes involving adult offenders. Detectives conduct investigations and follow-up relating to criminal incidents involving adult offenders. Not all cases are assigned to a detective; it is important to note that their involvement in a case will depend upon solvability factors, meaning what information is available for detectives to follow-up on in an effort to resolve the case.

Detectives are highly trained in investigative techniques and provide a high level of expertise to the cases they are involved with.

Financial Crimes

Financial crimes are one of the fastest growing crime trends in the country; as such, the department has detectives specifically trained to investigate financial crimes that have occurred within the city of Elgin. View more information about financial crime investigations.

Crime Tip Information

Detectives welcome information that can be useful to criminal investigations. If you have information that you believe will help detectives solve a crime or locate a suspect, aside from directly contacting the Adult Investigations Unit, other options are available: View information pertaining to how to submit a crime tip.

  1. Andrew Houghton

    Phone: 847-289-2620

  1. Chris Hughes

    Phone: 847-289-2623

  1. Nick Kozicki

    Phone: 847-289-2635

  1. Tim Marabillas

    Phone: 847-289-2615

  1. Kathryn Phillips

    Phone: 847-289-2645

  1. Scott St. John

    Phone: 847-289-2619

  1. Chad Thompson

    Phone: 847-289-2607

  1. Chet Westerman

    Phone: 847-289-2634

  1. Christopher Valle


  1. Joshua Ziegler

    Phone: 847-289-2697