Behavioral Intelligence



Our investigative intelligence locates and confirms facts to provide our clients with the foundation for meaningful critical analysis. Our priority is to ensure the client receives the whole truth and nothing but the truth within the most time efficient and cost effective process.

MN-BIA operates under licensure by the Private Detective and Protective Agent Services Board of the Minnesota Department of Public Safety.


MN-BIA's Director

Marshal is a Private Investigator and Forensic Interviewer licensed under the Department of Public Safety, State of Minnesota. As managing director and chief investigator, Mehlos comes to MN-BIA with career training and experience that spans across multiple fields. Having prior military science training (SJMA-JROTC, and UW-Superior USAF-ROTC) along with earning the Bachelor of Science degree in Psychology lent well to becoming a certified law enforcement officer for the State of WI. As a police officer, he acquired additional training in the FBI method of hostage negotiation (JCSO) and investigative victim interviewing.

After earning the Master of Science-Psychology degree from the University of Wisconsin, he attended the WI School of Professional Psychology for additional doctorate level courses in the investigative sciences including neuropsychology, psychopharmacology, and neuropsychological testing. This led to a four year service with the State of Illinois Department of Mental Health as a Certified Psychologist-II for the child and adult forensic inpatient units. While there, he was trained in forensic interrogation/elicitation interviewing by Colonel M. Parrish, MD, (USA-RET) 3rd Neuropsychiatry Consultant Commanding General. Prior to taking the current leadership role with MN-BIA, he also served five years as Director of the 5M Assistance Group, contracting with various agencies for specialized recovery services.

Other accomplishments include earning the Diplomat in Psychology, American College of Forensic Examiners, serving as an Expert Witness for cases of child physical and sexual abuse and as a forensic evaluator of defendants for the Minnesota Ninth Judicial District. Behavioral evidence analysis, forensic elicitation interviewing and the detection of deception are his specialty.

Marshal is a licensed Private Detective under the Department of Public Safety, State of Minnesota, and a Certified Forensic Interviewer (CFI).


MN-BIA is supported by investigative specialists. Each is a Licensed Private Detective, authorized under the State of Minnesota, Department of Public Safety.

Membership and Affiliations

Privacy and Security:

MN Behavioral Intelligence ("The Company") makes every effort to protect and maintain the privacy and security of information provided to it. The Company does not collect information other than that which is voluntarily offerred or received as part of it's ordinary practice relative to referral of expert services or case administration, including accounting, billing, and collections. Information collected is not sold or rented to any third party for any purpose. The Company will not collect information concerning site navigation and will not share this information with any third party.

Whether remote, automated, manually, by software, or any other menas, use of or links to this site negatively impacting or compromising site performance, technical infrastructure, appearance, content, security, stability, or the intent of its owner(s) represents unacceptable use. Unacceptable use also includes but is not limited to that which is illegal, immoral, unethical, discriminatory, or in any other way harmful to others including the company itself. Any hyperlinks to this website - provided they do not constitute an unacceptable use as expressed above, may be made with the understanding that they must be immediately removed or discontinued upon the request of MN-BIA