The Lesotho Mounted Police Service (LMPS) is established under article 147 of the national Constitution, and charged with the maintenance of law and order. Its chief officer is designated ''Commissioner'' by the Constitution. The LMPS provides uniformed policing, criminal detection, and traffic policing. There are specialist units dealing with high-tech crime, immigration, wildlife, and terrorism. The current force has existed, despite changes of name, continuously since 1872.