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.
Vice Chairman of Ethics and Education
Executive Advisor - Field Operations Consultant
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