Members of the security team at MGM Springfield will vote this month on union representation, claiming the casino has not honored some of its commitments to them.

The 200-some group is a mix of former members of area police departments, correctional officers and military veterans who transitioned into the private sector as well as younger officers who entered the field earlier in their careers. They undergo emergency training, including emergency medical procedures and defensive tactics. The officers are hourly workers who say they are paid less per hour than they were promised.