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Emergency Call:
Non-Emergency Call:
(309) 343-9151
(24 hours)

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Administrative Office:
152 South Kellogg St.
Galesburg, Illinois 61401
M-F 7:30am - 4:30pm
Phone: (309) 345-3733

JAIL/COURT SECURITY - Now Accepting Applications

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Knox County Jail Correctional Officers
Knox County Courthouse Security Officers

***Initial Hire Corrections/Court Security Testing***
The Knox County Sheriff's Department has announced dates for Initial Hire testing.

Mandatory Orientation
Thursday, November 30th, 2017 @ 7pm
Knox County Courthouse
200 S. Cherry St, Galesburg, IL 61401

Anyone who cannot make it to the Orientation MUST receive permission to miss it PRIOR to the Orientation.  You must call Jim Nelson (309)337-6555 or Captain Dave Caslin (309)221-5061

All Applications must be turned in to the Knox County Sheriff’s Department, 152 S. Kellogg St, Galesburg, IL, no later than 4pm on Friday December 29th, 2017.  We recommend that you download the application from the website and start working on it now.  Applications will NOT be accepted until after the Orientation.

Physical Agility & Written Examination

Saturday, January 13th, 2018 @ 8am
Knox College Fieldhouse
199 E Knox Street, Galesburg, IL

Click HERE for a map with instructions on where to park and enter the building. 

The Knox County Sheriff's Department Merit Commission is also accepting Lateral Transfers.  For a full list of the requirements for Lateral Transfers, see the Merit Rules.

Lateral Transfer Requirements

1. Must be currently a Full Time Certified in Either Law Enforcement from any state or Full Time Certified in Corrections in the State of Illinois.

2. Must have at least one (1) year of experience as a Full Time Certified Law Enforcement Officer or Correctional Officer, with their current Agency.

-The following minimum requirements are waived:

-Orientation Meeting
-Agility Test
-Written Test


 The Knox County Sheriff's Department is ONLY accepting Lateral Transfer Applicants at this time.


Not Eligible for Lateral Transfer? Sign up for email alerts or like us on Facebook and Twitter for updates on testing cycles and other events.


The Knox County Merit Commission has amended the Merit Rules regarding applicants who are Full-Time Correctional Officers and Lateral Transfers. (08/22/17)

Full-Time Certified Correctional Officers are now exempt from the physical agility portion of the test.

Lateral Transfer Applicants are now exempt from the physical agility AND the written exam.

 Application can be found at the bottom of this posting.  It may be downloaded and/or printed from that link. 



The Knox County Sheriff's Department's Correctional Division is responsible for the day-to-day operations and security at the Knox County Jail.  Operations in the jail are conducted from three main areas:  Booking Room, Secure Area (Inmate Pods) and the Control Room.

Some of the duties of a Correctional Officers are:

Protecting the Knox County Jail from Security Breaches
Maintaining General Order and Protecting Inmates
Booking Arrestees (finger printing, photographing, etc.)
Conducting Cell Checks and Searches
Prisoner Transportation
Maintaining Prisoner Records and Property
Serving Arrest Warrants
Coordinating Inmate Programs (Visitation, Bible Study, etc.)
Controlling inmate and visitor movement throughout the facility

The Correctional Division offers opportunities for advancement an promotion.  The current rank structure consists of three shift Sergeants, a Chief of Operations and a Lieutenant (Jail Administrator).  Correctional Officers must meet the criteria for promotion and then go through the testing process which includes written examination and oral interviews.

Being a Correctional Officer can be a physically demanding and mentally challenging job.  




A Court Security Officer is the most widely visible position in the Knox County Sheriff's Department.  Everyday hundreds of people make their way through the Knox County Courthouse and it's the duty of the Court Security Officer to ensure their safety and protection.

To ensure a safe environment in the Courthouse, Security Officers screen everyone entering the building by using metal detectors and an X-Ray machine.  Court Security Officers are assigned to the various court rooms to maintain order and protect the Judges, attorneys, defendants  and visitors.

Court Security Officers are also responsible for guarding defendants who are still in the custody of the Knox County Jail during their court proceedings.

During jury trials,  a Court Security Officer is assigned to the jurors throughout the entire trial.  The Officer directs and protects the jurors as they perform their civic duties.

Both Correctional Officers and Court Security Officers are represented by the American Federation of State, County and Municipal Employees (AFSCME) labor union.  Correctional Officers and Court Security Officers participate in the Illinois Municipal Retirement Fund (IMRF) .

All Knox County Correctional and Court Security Officers are Sworn Personnel. A current wage matrix and retirement benefit information are available.



The following requirements must be met before original appointment to the position of  Correctional Officer or Court Security Officer:

  1. Attend the Orientation Meeting accompanied by spouse or close relative. (Lateral Transfers Exempt)
  2. Be a United States Citizen.
  3. Be at least 21 years of age. 
  4. High School diploma or GED equivalent.
  5. Vision- 20/40 each eye uncorrected, corrected to 20/20 and not color blind. 
  6. Pass medical/Physical Agility Exams (height & weight proportional).
  7. Passing score on Physical Agility Test. (Lateral Transfers Exempt)
  8. Passing score on Written Examination and Oral Interview.(Lateral Transfers Exempt from Written Exam)
  9. Background Investigation which may include: psychological, polygraph and drug screen examinations.
  10. Have a valid driver's license and safe driving record.
  11. Be able to read, speak and write the English language.
  12. Have adequate typing skills. 
  13. Have adequate skills working with the public.

Appointees must reside within a 30 mile radius of the Knox County Law Enforcement Center within one year after appointment.

Knox County Sheriff's Department's Pre-Employment Drug Use Policy


Correctional Officer and Court Security Officer candidates are placed on and hired from the same eligibility list established by the Knox County Merit CommissionLateral Transfer candidates are placed on a separate eligibility list. 

Correctional Officers will be required to attend and successfully complete an approved Basic Correctional Officer Training Program.

Both Correctional Officers and Court Security Officers will be required to attend and successfully complete the 40 hour Illinois Mandatory Firearms Training Course.

A complete copy of the Knox County Merit Rules listing all of the requirements, qualifications and testing procedures can be viewed below. 

Sign up for email alerts to be notified of upcoming testing. An Application Packet will be made available for download from this page when the testing is announced.

Any questions regarding the Knox County Sheriff's Department's Hiring Procedures should be directed to:

Captain Dave Caslin
Knox County Sheriff's Department

152. S. Kellogg Street
Galesburg, IL 61401
(309) 345-3733


Additional Information

Agility Test
Merit Rules


     Knox County Sheriff's Office | © 2017
     Knox County, Illinois
Brooks and Jeffrey