Maryland Criminal Law Section 9-303

      (a)      A person may not intentionally harm another, threaten to harm another, or damage or destroy property with the intent of retaliating against a victim or witness for:

            (1)      giving testimony in an official proceeding; or

            (2)      reporting a crime or delinquent act.

      (b)      A person may not solicit another person to intentionally harm another, threaten to harm another, or damage or destroy property with the intent of retaliating against a victim or witness for:

            (1)      giving testimony in an official proceeding; or

            (2)      reporting a crime or delinquent act.

      (c)      (1)      Except as provided in paragraph (2) of this subsection, a person who violates this section is guilty of a misdemeanor and on conviction is subject to imprisonment not exceeding 5 years or a fine not exceeding $5,000 or both.

            (2)      If the official proceeding or report described in subsection (a) of this section relates to a felonious violation of Title 5 of this article or the commission of a crime of violence as defined in § 14-101 of this article, or a conspiracy or solicitation to commit such a crime, a person who violates this section is guilty of a felony and on conviction is subject to imprisonment not exceeding 20 years.

      (d)      A sentence imposed under this section may be separate from and consecutive to or concurrent with a sentence for any crime based on the act establishing the violation of this section.