We provide thorough, professional, and solid investigative services, tailored to the specific needs of individual, business and attorney clients.

Cornerstone Investigative Services, Inc. was established in 2014 by it's President, Duane Larson, following a career in law enforcement spanning more than 26 years. He has over 35 years of investigative experience conducting criminal, civil and corporate investigations, working within the criminal justice system, and advocating for the needs of victims and other clientele. Our investigators have decades of investigative experience in both the public and private sectors, conducting methodical in...

Cornerstone Investigative Services, Inc. was established in 2014 by it's President, Duane Larson, following a career in law enforcement spanning more than 26 years. He has over 35 years of investigative experience conducting criminal, civil and corporate investigations, working within the criminal justice system, and advocating for the needs of victims and other clientele. Our investigators have decades of investigative experience in both the public and private sectors, conducting methodical inquiries to properly collect and document available information and evidence in support of those who require such information. Whether individuals, corporations, law firms, or insurance companies, our clients are all treated with the same attention to detail, integrity, and thoroughness, regardless of the complexity of the case. Every case is unique, therefore, every investigation is tailored to maximize the effectiveness of the investigator, with the goal of successfully meeting case objectives on behalf of the client.