In most cases, the rules governing the Law of the United States (and the American Justice System) in Marvel Universes (and mostly Earth-616) mimics Earth-1218's version of the Law of the United States, including (for example) the Toxic Substances Control Act (TSCA) of 1976 (governing the manufacturing, importing, distribution, and processing of all toxic chemicals. TSCA requires that all such chemical be inspected and approved by the EPA...). and Supreme Court cases such as Marbury v. Madison, Brown v. Board of Education, U.S. v. Nixon or Obergefell v. Hodges or Rovario.
The superhuman and supernatural elements of those universes brings new situations and rules in law. In Earth-616, it led the law firm Goodman, Lieber, Kurtzberg & Holliway to open a branch where they practiced "Superhuman Law".
Source of Law and Legal Documents
Ruling and jurisprudence
Please find here the known jurisprudence, rulings and precedents.
- Stark v. Maximoff: "the Supreme Court ruled that the jury is free to consider all evidence of enhanced individuals and/or extra-normal incidents."
- In the Bailey Briggs Murder Trial, Doctor Strange considered that the ghost of Mr. Bailey Briggs (who wished to testify in court) wouldn't be acknowledged by the court. Mallory Book intended to cite precedents such as taped confessions of dying men or suicide notes. It was resolved that the testimony wasn't receivable, and that a dead man had no rights in a court of law. After citing the Infinity Gauntlet Affair, the case of Thanos v The Universe, in which Thanos killed half of the universe's population, including half of Earth's population, the decision was reversed.
- The District Attorney once considered that Nicolas Wilkes's who had admitted during an interrogation by the police and under the influence of Doctor Strange's Eye of Agamotto (which reveals the truth) to be guilty of the stealing of the Wand of Watoomb, was free to go (on a matter of civil rights).
- In People v. Slugansky, during the trial of Simon Slugansky, the criminal section of the New York State Supreme Court set a precedent by allowing Daredevil to testimony without removing his mask nor revealing his identity, admitting as potentially legal the expansion of the doctrine of the law to accept confidential testimony, informants, etc. (and letting the opposing party depose a motion to compel Daredevil to reveal his identity). The New York State Court of Appeals (the higher court in the state) later ruled against Murdock in a 4-3 decision....
According to Goodman, Lieber, Kurtzberg & Holliway Stu Cicero, Marvel Comics are admissible in any court of law, given the fact most of them are licensed from real heroes and that any issue published before 2002 bears the seal of the Comics Code Agency, a federal agency, making them legal documents.
Using magic in financial dealings constitutes illegal market manipulation.
The State of New York doesn't have laws on the books to protect the life, liberty and happiness of non human life-forms. Therefore no charges can be pressed upon (for example) murderers of an non human life-form. It is possible to seek a remedy in civil court.
Reading a government official's mind is a federal offense.