N.H. Rev. Stat. Ann. § 649:12

This chapter, and all orders made under it shall be in force until May 15, 1945, and thereafter whenever the governor and council shall by proclamation declare a state of emergency to exist; provided, any violation hereof, committed while this chapter is in force, may be prosecuted and punished thereafter, whether or not this chapter is in force at the time of such prosecution and punishment.