RSA 318-B:27: Prior Offenses.

In the case of any person charged with a violation of any provision of this chapter or RSA 318-D, who has previously been convicted of a misdemeanor or felony level violation of the laws of the United States or any state, territory or the District of Columbia relating to controlled drugs as defined in this chapter, such previous conviction shall be deemed a prior offense. A prior conviction for a violation level offense shall not be deemed a prior offense, except as provided in RSA 318-B:2-c, V(a).