Forbes played for American International College between 1967 and 1971. He signed as a free agent in 1973 with the Boston Bruins and made his NHL debut that year. Forbes made an impact as a defensive-minded forward as he helped guide the Bruins to the finals in 1974 during his rookie season, and to the finals in 1977. Forbes played four seasons with Boston until he was claimed by the Washington Capitals in the Waiver Draft before the 1977–78 season. After playing one season with the Capitals, he was released after only playing two games during the 1978–79 season and signed to play for the Cincinnati Stingers of the World Hockey Association.
Criminal charges
Forbes was charged with aggravated assault in Minneapolis in 1975 after butt-ending Henry Boucha's eye socket in a game against the Minnesota North Stars, leaving Boucha with limited vision in the right eye. The trial received much publicity as it was highly unusual for an athlete to face criminal charges for assault during a game. The trial ended with a hung jury; the charges were not refiled.[1] Forbes was suspended for 10 games by the NHL, and Forbes and the Bruins settled a civil case by paying Boucha over $1 million.[2]