Chapter 153. AN ACT ESTABLISHING THE CRIME OF ASSAULT AND BATTERY UPON CERTAIN PUBLIC TRANSPORTATION EMPLOYEES. Whereas, The deferred operation of this act would tend to defeat its purpose, which is to increase immediately the security and safety of certain public transportation employees in providing essential services to the public, therefore it is hereby declared to be an emergency law, necessary for the immediate preservation of the public convenience. Be it enacted, etc.. as follows: Chapter 265 of the General Laws is hereby amended by striking out section 13D, as appearing in the 1984 Official Edition, and inserting in place thereof the following section:- Section 13D. Whoever commits an assault and battery upon a police officer, firefighter, correction officer, sheriff, deputy sheriff, court officer, parole officer, parole supervisor, constable, an employee of the registry of motor vehicles having police powers, a public school teacher, a public school administrator or any person in a public school system having duties similar to a teacher or administrator when such person is engaged in the performance of his duty at the time of such assault and battery, or a bus, trackless trolley, rail, or rapid transit motorman, operator, gateman, guard, or collector when such person is engaged in the performance of his duties at the time of such assault and battery, shall be punished by imprisonment for not less than ninety days nor more than two and one-half years in a house of correction or by a fine of not less than five hundred nor more than five thousand dollars. Approved July 17, 1985.