Maryland Criminal Procedure Section 9-114

      (a)      The arrest of a person may be lawfully made also by any law enforcement officer without a warrant upon reasonable information that the accused stands charged in a court of a state with a crime punishable by death or imprisonment for a term exceeding 1 year.

      (b)      When an accused is arrested under subsection (a) of this section:

            (1)      the accused must be taken before a judge or District Court commissioner with all practicable speed;

            (2)      complaint must be made against the accused under oath setting forth the ground for the arrest as in § 9-113 of this title; and

            (3)      thereafter, the answer of the accused shall be heard as if the accused had been arrested on a warrant.