333 (1866), was an important United States Supreme Court case involving the disbarment of former Confederate officials.
In January 1865, the US Congress passed a law that effectively disbarred former members of the Confederate government by requiring a loyalty oath to be recited by any federal court officer that affirmed that the officer had never served in the Confederate government.
Augustus Hill Garland, an attorney and a former Confederate Senator from Arkansas, subsequently received a pardon from US President Andrew Johnson.
Garland then came before the court and pleaded that the act of Congress was a bill of attainder and an ex post facto law, which unfairly punished him for the crime for which he had been pardoned, and so was unconstitutional.
The law was struck down as unconstitutional, which opened the way for former Confederate government officials to return to positions in the federal judiciary.