(815) 630-5212 14300 Coil Plus Dr Plainfield, IL 60544
Mobile Team Unit #16
Reset Password

Background Investigations for Police Applicants

Notice
  • This event meets the criteria for specific mandated training
  • Non members please click here to contact us to request access to online registrations.

Login Required

Waiting List

This event is currently full and we are not allowing for any more registrations at this time. We do apologize for this, but would like to offer you to be added to our Waiting List. Fill out the following form, then if someone cancels their registration, you will be notified and given the opportunity to become an official registrant.

Date: Wednesday, February 18, 2026
Ends On: Thursday, February 19, 2026
Registration Deadline: Tuesday, February 17, 2026
Class Time(s): 02/18/2026 - 02/19/2026: 8:00 AM -- 4:00 PM
Instructor Location:
Mokena Police Department
10300 W. 191st St.
Mokena, IL 60448
Driving Directions
Instructor: Aaron A. Harnish served with the Lancaster City Bureau of Police (PA) for over 23 years. He spent the majority of his career assigned to the Criminal Investigative Division, where he has investigated more than 1,000 sex crime and child abuse cases. He had the privilege of serving as the lead investigator for five criminal homicides, the outcome of which were convictions at trial or guilty pleas. For approximately 11 years, Mr. Harnish performed or consulted on hundreds of background investigations. He spearheaded the police candidate physical agility test, written test, and oral interview hiring process. He also led in-person recruitment and online marketing efforts for police and civilian applicants, which resulted in a significant increase in the number of applicants. Mr. Harnish holds a Master�s Degree in Public Administration and a Bachelor�s Degree in Criminal Justice. A former adjunct professor of Criminal Justice at several colleges, Mr. Harnish brings real-life experiences to the classroom. He has conducted numerous presentations at professional and academic conferences across the United States, covering a range of criminal justice-related topics. He has trained law enforcement officers nationally since 2018
Member's Fee: $0
Non-Member & Civilian Fee: $0



Course Description:

This course is designed for background investigators, supervisors, and human resource policy makers. Law enforcement strives for professionalism; however, abuses by officers cast a negative light on the entire organization. An examination of the past behavior of some involved officers reveals that a pattern of undesirable behavior existed prior to appointment as a police official. This behavior was unknown to the hiring agency due to an inadequate or non-existent applicant screening. The integrity and ethical reputation of a police department mandates a thorough background investigation of police applicants. This course offers a systematic approach to background investigations which will assist in making informed hiring decisions.


 
*Funded in Partnership with the Illinois Law Enforcement Training & Standards Board

This training covers the following mandates: