The Quincy Exchange Club named its 50th annual law enforcement officer of the year and citizen of the year Friday night.

Quincy Police Department Detective Adam Gibson was named law enforcement officer of the year.

Of the five homicides in Quincy in the past year, Gibson has been the lead detective in four of them.

In the killings of Rayshone Humphrey, Randy Bowser-Smith and Billy Graham, suspects were apprehended and are now either serving time or awaiting trial.

The Exchange Club’s citizen of the year is Mike Predmore, who was honored for his years of service to Quincy Regional Crimestoppers.