Excessive bail will not be required, excessive fines or cruel and unusual punishments will not be imposed. The Eighth Amendment deals only with criminal punishment and does not apply to civil proceedings. The Eighth Amendment's prohibition against cruel and unusual punishment prohibits punishment that is cruelly disproportionate to the crime. The Supreme Court ruled that a 15-year sentence of hard labor was a constitutionally prohibited punishment for a public official who falsified a minor document.
Similarly, the death sentence for a convicted rapist has also been considered to constitute cruel and unusual punishment. Some acts will be criminally punished, while others will be dealt with by the civil parties of the legal system. However, criminal laws are interpreted in the light of an 800-year history of principles of common law and against the more modern restrictions imposed by constitutional doctrines. The doctrine of vagueness comes from the due process clauses of the fifth and fourteenth amendments to the Constitution.
However, legislatures soon became interested in defining crimes; therefore, in the context of criminal law, the term “common law” incorporates both laws and laws enacted by judges, as well as judicial interpretations of laws. Ex post facto laws are laws that aim to retroactively declare illegal conduct that was previously legal, retroactively increase the penalty, retroactively change the rules of evidence in a criminal case, or retroactively alter the definition of a crime.
