1972 Senate Bill 1276. An Act Providing That Any Person Appointed As A Regular Police Officer On A Permanent Basis In Any City Or Town, The Metropolitan District Police, The Massachusetts Bay Transportation Authority Police, Members Of The Registry Of Motor Vehicles With Police Powers, Or The Capitol Police Shall Attend A Police Training School, And Requiring In-Service And Supervisory Training For Police Officers In Cities And Towns, The Metropolitan District Police, The Massachusetts Bay Transportation Authority Police, Members Of The Registry Of Motor Vehicles Having Police Powers And The Capitol Police.