Mike Hermann Investigations was founded in 2009 by Mike Hermann, a former Police Lieutenant with 19 years of law enforcement experience and now over 35 years of ongoing dedicated service within the criminal justice system.
Throughout his law enforcement career, Mike conducted thousands of criminal and civil investigations, including major casework involving homicides, suspicious deaths, attempted murders, assaults with deadly weapons, drug offenses, child abuse and neglect, robberies, missing persons, fatal traffic collisions, fraud, thefts, burglaries, elder abuse, and sex crimes.
For the majority of his law enforcement career, Mike was responsible for the training and supervision of officers in proper police practices, investigative procedures, and field operations. He also served as an instructor in Weaponless Defense, Taser use, and Crime Scene Investigations — including evidence identification, evidence collection, search warrant preparation, and courtroom testimony. His leadership in training programs helped shape the professionalism and investigative skills of countless officers.
In addition, Mike conducted numerous Internal Affairs and Administrative Investigations, including officer-involved shootings, use-of-force incidents, traffic collisions, and in-custody deaths. He is an I.C.I. (Institute of Criminal Investigations) Certified Homicide and Child Abuse Investigator and is well-versed in law enforcement operational and administrative policies.
As a Private Investigator, Mike has handled a wide range of Local, State, and Federal cases, specializing in criminal defense, administrative, family law, probate, civil litigation, and Federal Death Penalty Habeas investigations. He has also been recognized as an expert witness in both State and Federal Courts across a variety of investigative subjects.
A strong believer in due process, Mike is dedicated to ensuring that criminal charges are backed by complete and properly conducted investigations. His efforts have contributed to the reduction or dismissal of charges in a significant percentage of cases.
Mike holds a Bachelor’s Degree in Criminal Justice Administration and a Master’s Degree in Business Administration. He is also a part-time lecturer at Sacramento State University, where he teaches Criminal Justice courses. In addition to his degrees and over 2,000 hours of professional law enforcement training, Mike remains committed to staying current through continual research and professional development.
Mike Hermann Investigations also benefits from the inclusion of seasoned investigator Kellie Fisher as part of its team. A retired Sheriff’s Sergeant with over 23 years of law enforcement experience, Kellie enhances the firm’s ability to deliver thorough, ethical, and results-driven investigations across a wide range of complex cases. Whether your case is handled directly by Mike or by Kellie, you can expect the same unwavering standards of professionalism, attention to detail, and commitment to achieving the best possible outcome.