Meet the Command Staff

Chief Deputy Naldo S. Gagnon

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Welcome to the Cumberland County Sheriff’s Office official website. My job as Chief Deputy is similar to a Chief Operating Officer of a company in the private sector. I oversee the more than 260 employees and all of the operations of the Sheriff’s Office.  The Sheriff’s Office utilizes a budget of more than $20 million ensuring the safety of our streets and the safe and humane treatment of those remanded to our care. 

The business of law enforcement and corrections is complex and both require a community-involved approach. Working together, we can best serve the needs of the whole community and better utilize our resources truly lowering the crime rate. With many people suffering from mental illness and drug addiction issues in conjunction with the national opioid crisis, we must work together to find real solutions to addiction and resources that can actually help people with mental illness. Incarceration is not the answer for either.

I have over 30 years in law enforcement and I enjoy being an integral part of my community helping people and affecting change. It is my pleasure working with the Cumberland County Sheriff’s Office and the citizens of Cumberland County.

Major Timothy Kortes - Jail Administrator

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Captain John Costello - Jail Operations and Security

Captain Costello oversees the operations and security of the jail.  This includes daily operations of the jail, intake, and transportation, professional standards, ACA and PREA.

Captain - Administration & Support- CURRENTLY VACANT

Captain Craig Smith - Support Services

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Captain Smith leads the Support Services Division. This includes professional standards, CALEA, grants, and training

He completed a 31-year career at the Polk County Sheriff’s Office located in Florida and then joined the Cumberland County Sheriff’s Office in 2012.

His training includes numerous advanced and specialized training courses relating to criminal investigations (property crimes, sex crimes, child abuse, and homicide) as well as two advanced leadership courses, the 12-week Administrative Officer’s Course offered through the University of Louisville and the eight-week Certified Public Manager Course through Florida State University. In addition, Captain Smith earned his Bachelor’s Degree in Business/Criminal Justice and his Master’s Degree in Public Administration.

Captain Kerry Joyce - Patrol Division


Captain Donald Foss - Criminal Investigations Division

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Captain Foss began his career with the Cumberland County Sheriff’s Office in 1992 and has served in nearly every function, including Patrol Deputy, Detective, Sergeant, and Lieutenant.  He was promoted to Captain in January 2020 where he manages the Criminal Investigation Division, Internal Affairs Unit, Police Records, and Honor Guard team.

Captain Foss is a Maine native and has local ties with the community.  He is a graduate of Lake Region High School, has an A.A.S. degree in Criminal Justice from Southern Maine Community College, and a B.A. degree in Criminology from the University of Southern Maine.  

Captain Foss is also a graduate of the FBI National Academy session #278.  He has attended numerous leadership training programs including:

FBI-LEEDA Leadership Trilogy Program 

NEILEM Command Training Program - Session #252

New York City Police Department 72nd Homicide Investigators School