CLS Background Investigations

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CLS Background Investigations CLS BACKGROUND INVESTIGATIONS-- We investigate the backgrounds of potential employees with a focus on public service (police and fire service personnel).

We are a full service pre-employment, pre-lease, background investigation agency. We specialize in background investigations for the public service industry and we are built on a foundation of more than 40 years of law enforcement experience. We offer compliant solutions nationwide and we are a licensed private investigations agency in Illinois (117-00-1426).

09/14/2026

FCRA requires Pre-Adverse and Adverse Action notices be provided to the applicant in the event that they are going to be bounced from your process based upon the content of their background investigation. Public Service Agencies (police & fire) are not exempt from this requirement! So, what are they exactly? Have a look.....

Remembering those that died today during the horrific attacks on 9/11, twenty five years ago today. A special salute to ...
09/11/2026

Remembering those that died today during the horrific attacks on 9/11, twenty five years ago today. A special salute to all of our first responders who continue to run into the fray that others are trying to escape! We thank you for your service!!

This post goes out to my police and fire chiefs out there. With the debacle that the Flock Camera misuse has recently ca...
08/28/2026

This post goes out to my police and fire chiefs out there. With the debacle that the Flock Camera misuse has recently caused; here is a clip with something that you may not have even thought about! Stay tuned for more!

Share your videos with friends, family, and the world.

Public service agencies are not exempt from compliance with the FCRA. Find out what that means for you, as the agency he...
08/19/2026

Public service agencies are not exempt from compliance with the FCRA. Find out what that means for you, as the agency head, in this short series of videos.

The first in a series of brief awareness video clips for public ser...

Did you know that CLS Background Investigations is the only Background Investigations Company in the US, certified by th...
08/14/2026

Did you know that CLS Background Investigations is the only Background Investigations Company in the US, certified by the Workplace Violence Mitigation Institute!

A little something for my law enforcement and fire agency heads. The first in a series of videos on how pre-hire backgro...
07/09/2026

A little something for my law enforcement and fire agency heads. The first in a series of videos on how pre-hire background investigations can impact your department and you personally.

The first in a series of videos discussing the individual exposure ...

Fire departments across the country are facing the same hiring challenge right now:More openings. More applicants. Less ...
06/16/2026

Fire departments across the country are facing the same hiring challenge right now:

More openings. More applicants. Less time to vet them properly.

Recruitment classes are getting larger. Timelines are getting tighter. And the pressure to fill seats sometimes pushes thorough background investigations to the back burner.

That's exactly when a bad hire slips through.

We exist to take that pressure off your command staff. You handle the hiring process — we handle the investigation, completely and thoroughly, so you can make a confident, defensible decision.

No contracts. No minimum order. Just call us when you need us.

→ Visit www.cls-ent.com or send us a message to get started.

Since 2000, CLS provides Background Investigations for public safety agencies, employers, landlords, and nonprofits. FCRA-Compliant nationwide.

Fire departments across the country are facing the same hiring challenge right now:More openings. More applicants. Less ...
06/08/2026

Fire departments across the country are facing the same hiring challenge right now:

More openings. More applicants. Less time to vet them properly.

Recruitment classes are getting larger. Timelines are getting tighter. And the pressure to fill seats sometimes pushes thorough background investigations to the back burner.

That's exactly when a bad hire slips through.

We exist to take that pressure off your command staff. You handle the hiring process — we handle the investigation, completely and thoroughly, so you can make a confident, defensible decision.

No contracts. No minimum order. Just call us when you need us.

→ Visit www.cls-ent.com or send us a message to get started.

After 25 years in the background business CLS has updated our website to better reflect our niche expertise, serving the...
06/03/2026

After 25 years in the background business CLS has updated our website to better reflect our niche expertise, serving the police and fire agencies that serve all of us every day. If you don't see your agency listed on the site, please let us know. If you need your agency added to the client list, please let us know.

Take a look!

Since 2000, CLS provides Background Investigations for public safety agencies, employers, landlords, and nonprofits. FCRA-Compliant nationwide.

Remember- Background Investigations are Workplace Violence Mitigation!
06/02/2026

Remember- Background Investigations are Workplace Violence Mitigation!

Interested in what WVM Training actually looks like? Check out our new promo video!!

Address

13010 W. 159th Street
Homer Glen, IL
60491

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