Maryland Statutes
Subtitle 2 - General Provisions
Section 1-203 - Failure to Comply With Subpoena; Refusal to Be Sworn or to Give Evidence

(a)    If a person fails to comply with a subpoena issued under this article, then, on complaint filed by the issuing authority, a court of competent jurisdiction may order compliance with the subpoena.
    (b)    If a person refuses to be sworn or to give evidence before an officer or unit authorized by this article to administer oaths, then, on complaint of the officer or unit, a court of competent jurisdiction may order the person to be sworn or to give evidence.