There are four sources of American law, constitutional, administrative, statutory and common law (including case law). The most important law. The United States and most Commonwealth countries have inherited the common law tradition of English law. For example, U.S. courts inherit the principle of "follow the precedents." A handful of the important English statutes that were practiced in the War of Independence were copied by the states in the United States almost invariably. Many legal professionals will recognize both the fraud law and the statute of Elizabeth 13. The modern United States version of these English laws is still often cited by the current legal culture. Although different Commonwealth tribunals are often subject to each other's