At MPSI we realize that some clients need more than just the preventative measures that the typical security guard company can offer. To those clients we offer a wide variety of services through private investigation. 

All of the MPSI investigators are fully licensed and have completed rigorous mandatory and elective training to ensure that they meet the highest of standards.

Not only are they equipped with the best training, they also have the best investigative tools on the market. 

Some of the services we specialize in include:

Serving Legal Papers

Performing Skip Trace

Corporate Investigations:

Fraud and Embezzlement

Sexual Harassment

Civil and Criminal Background Checks

Corporate Theft

Insurance Claims

Background Checks

Surveillance

Domestic Investigations:

Cheating Spouse

Child Custody

Criminal Background

21200 S. La Grange Rd. STE 187 | Frankfort, Illinois 60423

Tel. (815) 530-5505

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