New Jersey Statutes Title 33. Intoxicating Liquors 33 § 1-53

In case any person shall, after conviction of an offense under this chapter, be convicted of another offense under this chapter, such other and subsequent offense shall be punishable by a fine or imprisonment, the maximum and minimum limits of which shall be twice the limits otherwise by this chapter imposed, or by both such fine and imprisonment, in the discretion of the court.