Federal Bureau of Investigation (FBI), division of the U.S. Dept. of Justice charged with investigating all violations of federal laws except those assigned to some other federal agency. The FBI has jurisdiction over some 185 investigative matters, among them espionage, sabotage, and other subversive activities; kidnapping; extortion; bank robbery; interstate transportation of stolen property; civil-rights matters; interstate gambling violations; and fraud against the government. Created (1908) as the Bureau of Investigation, it originally conducted investigations only for the Justice Dept. After J. Edgar Hoover Hoover, J. Edgar (John Edgar Hoover), 1895–1972, American administrator, director of the Federal Bureau of Investigation (FBI), b. Washington, D.C. Shortly after he was admitted to the bar, he entered (1917) the Dept.
..... Click the link for more information. became (1924) director of the Bureau of Investigation, Congress gradually added one duty after another to the jurisdiction of the bureau and reorganized (1933) it with wider powers as the Division of Investigation in the Dept. of Justice. Under Hoover's direction, it battled against such roving outlaws as John Dillinger Dillinger, John (dĭl`ĭnjər), 1902–34, American bank robber, probably b. Indianapolis.
..... Click the link for more information. and "Pretty Boy" Floyd as well as against the organized crime of the prohibition prohibition, legal prevention of the manufacture, transportation, and sale of alcoholic beverages, the extreme of the regulatory liquor laws . The modern movement for prohibition had its main growth in the United States and developed largely as a result of the
..... Click the link for more information. era. In 1935 it was designated the Federal Bureau of Investigation. The FBI played an important role in raising the standards of local police units through its FBI Academy.

During Hoover's final years as director (he served until his death in 1972), the bureau became highly controversial and was the frequent target of attack from a wide variety of liberal groups. During the Watergate affair Watergate affair, in U.S. history, series of scandals involving the administration of President Richard M. Nixon ; more specifically, the burglarizing of the Democratic party national headquarters in the Watergate apartment complex in Washington, D.C.
..... Click the link for more information. it was revealed that the FBI had yielded to pressure from top White House officials, acting on behalf of President Richard M. Nixon, to halt their investigation of the Watergate break-in. The FBI subsequently cooperated with the White House "inquiry" into the break-in, which was actually attempting a cover-up, and FBI Acting Director L. Patrick Gray destroyed files belonging to one of the convicted Watergate conspirators, E. Howard Hunt. Gray resigned (Apr., 1973) after his role became public. In June, 1973, Clarence M. Kelley was named director. He was followed by William H. Webster (1978–87), William S. Sessions (1987–93), Louis J. Freeh (1993–2001), and Robert S. Mueller 3d (2001–).

Bibliography

See H. A. Overstreet, The FBI in Our Open Society (1969); W. W. Turner, Hoover's FBI (1970); R. O. Wright, ed., Whose FBI? (1974); J. T. Elliff, The Reform of the FBI Intelligence Activities (1979); F. M. Sorrentino, Ideological Warfare: The F.B.I.'s Path toward Power (1985); B. Burrough, Public Enemies: America's Greatest Crime Wave and the Birth of the FBI: 1933–34 (2004).

Federal Bureau of Investigation (FBI)

Largest investigative agency of the U.S. government. It was founded in 1908 as the Bureau of Investigation within the U.S. Justice Department. J. Edgar Hoover served as its director from 1924 until his death in 1972. Since 1968 the director, who reports to the attorney general, has been appointed by the president for a 10-year term, subject to Senate approval. The FBI employs more than 10,000 special agents. Its responsibilities include investigating violations of federal criminal law (including in the areas of civil rights and organized crime), collecting evidence in civil cases to which the U.S. is a party, and providing internal security.