Final answer:
'Es post facto' seems to be a typographical error for 'ex post facto,' a Latin phrase meaning 'from after the fact' or 'retroactively,' which is used to describe laws that are applied to actions that occurred before the laws were passed.
Step-by-step explanation:
The Latin phrase "Es post facto" appears to be a typographical error, and the correct term is "ex post facto." Translated as 'from after the fact' or 'retroactively,' it refers to laws that alter the legal consequences of actions after they have taken place. In legal contexts, the concept of 'ex post facto' is often discussed in the realm of constitutional law, particularly in connection with Article I, Sections 9 and 10 of the United States Constitution.
These provisions explicitly prohibit both the federal and state governments from enacting laws that retroactively change the legal consequences of past actions. The prohibition against ex post facto laws is rooted in principles of fairness, justice, and the protection of individuals from arbitrary and retrospective legal changes, ensuring stability and predictability in legal systems.