Be it enacted by the Senate and House of Representatives in General Court assembled, and by the authority of the same, as follows:

Notwithstanding section 6 of chapter 54 of the General Laws or any other general or special law to the contrary, the town of Shirley shall not be required to establish separate voting precincts, provided that the nonprisoner population of the town remains below the standard established by said section 6 of said chapter 54 requiring reprecincting.

The nonprisoner population of the town of Shirley shall be determined by subtracting the prisoner population as reported by the department of correction to the town from the total population as reported by the United States Census Bureau as calculated in the most recent decennial census. The prisoner population information shall be in the same form as the population information given to the town by the United States Census Bureau.