Following the Maryland legislature's April 29 directive that Maryland not be used as a passage for troops attacking the South, Governor Hicks allegedly ordered the state militia to demolish several state railroad bridges (at Bush River and Gunpowder River). Militia Lieutenant John Merryman was arrested on May 25 by order of Brigadier General William High Keim of the United States Volunteers, for his role in destroying the bridges. Merryman was charged with treason and being a commissioned lieutenant in an organization intending armed hostility toward the government.