Maryland Criminal Law Section 5-905

      (a)      A person convicted of a subsequent crime under this title is subject to:

            (1)      a term of imprisonment twice that otherwise authorized;

            (2)      twice the fine otherwise authorized; or

            (3)      both.

      (b)      For purposes of this section, a crime is considered a subsequent crime, if, before the conviction for the crime, the offender has ever been convicted of a crime under this title or under any law of the United States or of this or another state relating to other controlled dangerous substances.

      (c)      A person convicted of a subsequent crime under a law superseded by this title is eligible for parole, probation, and suspension of sentence in the same manner as those persons convicted under this title.

      (d)      A sentence on a single count under this section may be imposed in conjunction with other sentences under this title.