Maryland Public Safety Section 3-106

      (a)      Subject to subsection (b) of this section, a law enforcement agency may not bring administrative charges against a law enforcement officer unless the agency files the charges within 1 year after the act that gives rise to the charges comes to the attention of the appropriate law enforcement agency official.

      (b)      The 1-year limitation of subsection (a) of this section does not apply to charges that relate to criminal activity or excessive force.