§ 4821.
The Secretary of State may establish a Diplomatic Security Service, which shall perform such functions as the Secretary may determine.
([Pub. L. 99–399, title II, § 201], Aug. 27, 1986, [100 Stat. 858]; [Pub. L. 103–236, title I, § 162(g)(7)], Apr. 30, 1994, [108 Stat. 407].)