New Jersey Statutes Title 19. Elections 19 § 15-26

Every voter to whom a ballot is given shall thereupon retire into the polling booth.Each booth in a polling place shall be arranged in accordance with the provisions of R.S.19:8-7. Not more than one voter, except as hereinafter provided, shall be permitted to enter or be in the same booth, at one time. The voter shall prepare the voter's ballot in the booth secretly and screened from the observation of others.

Any person or voter who shall violate the provisions of this section shall be deemed guilty of a disorderly persons offense.