HKB
Statutes passed after the Civil War with the intent and result of excluding persons who had aided the Confederacy from following certain callings, by the device of requiring them to take an oath that they had never given such aid, were held invalid as being bills of attainder, as well as ex post facto laws.[1559]
Scope of Provision
This clause, like the cognate restriction imposed on the Federal Government by section 9, relates only to penal and criminal legislation and not to civil laws which affect private rights adversely.[1560] It is directed only against legislative action and does not touch erroneous or inconsistent decisions by the courts.[1561] Even though a law is ex post facto and invalid as to crimes committed prior to its enactment, it is nonetheless valid as to subsequent offenses.[1562] If it mitigates the rigor of the law in force at the time the crime was committed,[1563] or if it merely penalizes the continuance of conduct which was lawfully begun before its passage, the statute is not ex post facto. Thus measures penalizing the failure of a railroad to cut drains through existing embankments,[1564] or making illegal the continued possession of intoxicating liquors which were lawfully acquired,[1565] have been held valid.
Denial of Future Privileges to Past Offenders
The right to practice a profession may be denied to one who was convicted of an offense before the statute was enacted if the offense may reasonably be regarded as a continuing disqualification for the profession. Without offending the Constitution, a statute making it a misdemeanor to practice medicine after conviction of a felony may be enforced against a person so convicted before the act was passed.[1566] But the test oath prescribed after the Civil War, whereby office holders, teachers, or preachers were required to swear that they had not participated in the Rebellion, were held invalid on the ground that it had no reasonable relation to fitness to perform official or professional duties, but rather was a punishment for past offenses.[1567] A similar oath required of suitors in the courts also was held void.[1568]
Changes in Punishment
Statutes which changed an indeterminate sentence law to require a judge to impose the maximum sentence, whereas formerly he could impose a sentence between the minimum and maximum;[1569] abolished a rule which prevented a subsequent conviction of first-degree murder after a jury had found the accused guilty in the second-degree by a verdict which had been set aside;[1570] required criminals sentenced to death to be kept thereafter in solitary confinement,[1571] or allowed a warden to fix, within limits of one week, and keep secret the time of execution,[1572] were held to be ex post facto as applied to offenses committed prior to their enactment. But laws providing heavier penalties for new crimes thereafter committed by habitual criminals;[1573] changing the punishment from hanging to electrocution, fixing the place therefor in the penitentiary, and permitting the presence of a greater number of invited witnesses;[1574] or providing for close confinement of six to nine months in the penitentiary, in lieu of three to six months in jail prior to execution, and substituting the warden for the sheriff as hangman, have been sustained.[1575]
Changes in Procedure