§  220.21  Criminal  possession  of  a controlled substance in the first degree. A person is guilty of criminal possession of a controlled substance in  the first degree when he or she knowingly and unlawfully possesses: 1.  one  or  more  preparations,  compounds,  mixtures  or  substances  containing a narcotic drug and said preparations, compounds, mixtures or  substances are of an aggregate weight of eight ounces or more; or 2.  methadone  and  said  methadone weighs five thousand seven hundred  sixty milligrams or more. Criminal possession of a controlled substance in the first degree is a  class A-I felony.