United States Secret Service combat cybercrime. Protection of the nation's highest elected leaders and other government officials remains the other key mission of the United States Secret Service. After the 1901 assassination of President William McKinley, Congress also directed the Secret Service to protect the President of the United States. The Secret Service is authorized by law to protect: The laws states that individuals other than the President, the Vice President (or other officer next in the order of succession to the Office of President), the President-elect, and the Vice President-elect may decline Secret Service protection, but the law neither allows nor disallows these
United States Secret Service law enforcement agencies were the United States Customs Service, the United States Park Police, the U.S. Post Office Department's Office of Instructions and Mail Depredations (now known as the United States Postal Inspection Service), and the United States Marshals Service. The Marshals did not have the manpower to investigate all crime under federal jurisdiction, so the Secret Service began investigating a wide range of crimes from murder to bank robbery to illegal gambling. After the assassination of President William McKinley in 1901, Congress informally requested that the Secret Service provide presidential protection. A year later, the Secret Service assumed full-time