Matthew Gnatek is a retired law enforcement leader and veteran investigator with over 29 years of service to the City of Detroit. For more than two decades, he served as a Detective Sergeant and Squad Leader in the Detroit Police Department’s Homicide Section, where he was entrusted with some of the city’s most complex and high profile investigations.

In this leadership role, Gnatek supervised hundreds of homicide, suspicious death, and critical incident cases. He conducted and oversaw daily case briefings, developed investigative strategies, mentored detectives, and coordinated closely with prosecutors, medical examiners, and external agencies. His work demanded both operational discipline and interpersonal skill, consistently producing results in high stakes environments.

Earlier in his career, Gnatek served in the Tactical Response Unit, where he led mobile field force operations during civil unrest, directed targeted crime suppression efforts, and trained officers in tactical operations. As a Patrol Sergeant, he supervised large teams across multiple precincts, bringing structure, accountability, and field leadership to frontline operations in one of the most demanding urban policing environments in the country.

Today, Gnatek is the founder and principal of Westbrook Investigations & Consulting, LLC, where he provides professional investigative services to law firms, corporations, and private clients. His decades of hands on investigative experience, combined with a deep understanding of legal standards and courtroom dynamics, make him a trusted asset for litigation support, case consultation, and internal investigations.

Gnatek also recently completed over a decade of service as an elected board member of the Detroit Police and Fire Retirement System (2010–2023), where he was a fiduciary to the $3 Billion Dollar Pension Fund.

He holds a Bachelor of Business Administration from Cleary University, graduating summa cum laude, and is a graduate of Eastern Michigan University’s School of Police Staff and Command. He is currently pursuing a Master of Science in Business Leadership at Wayne State University, strengthening his capabilities in strategic management and organizational leadership.

Gnatek’ s professional credentials include advanced training in criminal interview and interrogation, forensic interviewing, medicolegal death investigation, technical diagramming, officer survival, and leadership development. Throughout his career, he has earned multiple Chief’s Merit Awards, Citations, Unit Citations, Commendations, and Letters of Appreciation for excellence in service.

With unmatched investigative depth, disciplined leadership, and a steadfast commitment to integrity, Matthew Gnatek continues to bring clarity and results to every client and case he serves.