CLS Background Investigations

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).

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!!

Here's what we actually look at during a firefighter pre-employment background investigation:✅ Full applicant interview ...
06/01/2026

Here's what we actually look at during a firefighter pre-employment background investigation:

✅ Full applicant interview (not just paperwork review)
✅ Employment history
✅ Personal reference interviews
✅ Financial responsibility check
✅ Social media review
✅ Driving record and criminal history
✅ Military service verification
✅ Education verification

Automated background check services check databases.
We conduct investigations.

The difference shows up when a candidate has been careful — and we find things anyway.

Fire departments only. Nationwide. No long-term contracts required.
www.cls-ent.com | DM us anytime.

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

Hiring a firefighter with undisclosed history isn't just a personnel problem.It's a liability exposure for your city or ...
05/19/2026

Hiring a firefighter with undisclosed history isn't just a personnel problem.
It's a liability exposure for your city or municipality.

When something goes wrong — and it does — the first question attorneys ask is:
"What did you know, and when did you know it?"

Negligent hiring claims in public safety are real, they're expensive, and they're almost always preventable.

A thorough pre-employment background investigation isn't just best practice.
It's your department's first line of defense.

We provide comprehensive, legally defensible background investigations built specifically for fire departments — compliant with FCRA, ADA, and Title VII.

→ Comment "INFO" below or DM us to learn more.

Most fire departments run a background check. Very few run a background investigation.There's a real difference — and it...
05/14/2026

Most fire departments run a background check. Very few run a background investigation.

There's a real difference — and it matters more than most chiefs realize.

A background check tells you if someone has a criminal record.
A background investigation tells you who someone actually is.

We look at employment history, personal references, social media, and a full applicant interview, driving records and professional certifications — not just a database query.

If you're putting someone in a home with vulnerable people at 3am, that difference matters.

Address

13010 W. 159th Street
Homer Glen, IL
60491

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