Maryland Criminal Law Section 9-707

      This subtitle does not impair, curtail, or destroy the rights of employees and their representatives to:

            (1)      self-organization;

            (2)      form, join, or assist labor organizations;

            (3)      bargain collectively through representatives of their own choosing; and

            (4)      strike, picket, or engage in concerted activities for the purpose of collective bargaining or other mutual aid or protection.