Captain Matthew Riendeau brings over 15 years of dedicated service to the Fairfield Police Department and is a proud veteran of the United States Marine Corps.
He began his law enforcement career as a patrol officer before being promoted to detective. He was later elevated to the rank of sergeant, where he served in the Patrol Division and then as a Detective Sergeant. In that role, he implemented and supervised the department’s Quality of Life Unit, a proactive team focused on addressing high-priority community concerns through targeted investigations.
Captain Riendeau also served as a long-time member of the department’s Emergency Services Unit, ultimately taking on the role of Team Commander.
After his promotion to lieutenant, he assumed command of the Investigative Division, overseeing a broad range of operations. Under his leadership, the division upheld high standards of accountability, efficiency, and effectiveness. He also established a dedicated Evidence Unit within the Investigations Bureau to improve chain-of-custody protocols and enhance evidence accountability.
Captain Riendeau holds a Bachelor of Science degree in Criminal Justice from Sacred Heart University. He is a proud Fairfield resident, where he lives with his loving wife and four children.
