Historically, the term "bills of attainder" was applied to "such special acts of the legislature as inflict capital punishment upon persons supposed to be guilty of high offences, such as treason and felony, without any conviction in the ordinary course of judicial proceedings." An act which inflicted a milder degree of punishment was called a bill of pains and penalties.[1465] Within the meaning of the Constitution, however, bills of attainder include bills of pains and penalties.[1466] As interpreted by the Supreme Court, this clause prohibits all legislative acts, "no matter what their form, that apply either to named individuals or to easily ascertainable members of a group in such a way as to inflict punishment on them without a judicial trial * * *"[1467] Two acts of Congress—one which required attorneys practicing in the federal courts to take an oath that they had never given aid to persons engaged in hostility to the United States,[1468] and another which prohibited the payment of compensation to certain named government employees who have been charged with subversive activity,[1469]—have been held unconstitutional on the ground that they amounted to bills of attainder.
EX POST FACTO LAWS
Definition
At the time the Constitution was adopted, many persons understood the terms ex post facto laws, to "embrace all retrospective laws, or laws governing or controlling past transactions, whether * * * of a civil or a criminal nature."[1470] But in the early case of Calder v. Bull,[1471] the Supreme Court decided that the phrase, as used in the Constitution, applies only to penal and criminal statutes. But although it is inapplicable to retroactive legislation of any other kind,[1472] the constitutional prohibition may not be evaded by giving a civil form to a measure which is essentially criminal.[1473] Every law which makes criminal an act which was innocent when done, or which inflicts a greater punishment than the law annexed to the crime when committed, is an ex post facto law within the prohibition of the Constitution.[1474] A prosecution under a temporary statute which was extended before the date originally set for its expiration does not offend this provision even though it is instituted subsequent to the extension of the statute's duration for a violation committed prior thereto.[1475] Since this provision has no application to crimes committed outside the jurisdiction of the United States against the laws of a foreign country, it is immaterial in extradition proceedings whether the foreign law is ex post facto or not.[1476]
An act of Congress which prescribed as a qualification for practice before the federal courts an oath that the attorney had not participated in the Rebellion was found unconstitutional since it operated as a punishment for past acts.[1477] But a statute which denied to polygamists the right to vote in a territorial election, was upheld even as applied to a person who had not practiced polygamy since the act was passed, because the law did not operate as an additional penalty for the offense of polygamy but merely defined it as a disqualification of a voter.[1478] A deportation law authorizing the Secretary of Labor to expel aliens for criminal acts committed before its passage is not ex post facto since deportation is not a punishment.[1479] Likewise an act permitting the cancellation of naturalization certificates obtained by fraud prior to the passage of the law was held not to impose a punishment but simply to deprive the alien of his ill-gotten privileges.[1480]
Change in Place or Mode of Trial
A change of the place of trial of an alleged offense after its commission, is not an ex post facto law. If no place of trial was provided when the offense was committed, Congress may designate the place of trial thereafter.[1481] A law which alters the rule of evidence to permit a person to be convicted upon less or different evidence than was required when the offense was committed is invalid,[1482] but a statute which simply enlarges the class of persons who may be competent to testify in criminal cases is not ex post facto as applied to a prosecution for a crime committed prior to its passage.[1483]
Clause 4. No Capitation, or other direct, Tax shall be laid, unless in Proportion to the Census or Enumeration herein before directed to be taken.
DIRECT TAXES