 Operatives from the Directorate of Military Intelligence can carry firearms on operations both at home and abroad, and those in the Directorate may not wear uniforms on operations.The Garda Special Detective Unit (SDU) works closely with the Intelligence Branch on domestic matters.Military Intelligence operates out of a number of locations in Dublin and County Kildare, and their headquarters are understood to be based at McKee Barracks, Dublin and the Department of Defence Headquarters in Newbridge, County Kildare.