Federal constitutional law originates from the U.S. constitution. State constitutional law originates from the individual state constitutions. Statutes and Ordinances are legislation passed on the federal, state, or local levels. Common Law is based on the concept of precedence - on how the courts have interpreted the law. Under common law, the facts of a particular case are determined and compared to previous cases having similar facts in order to reach a decision by analogy.
Common law applies mostly at the state level.
It originated in the 13 th century when royal judges began recording their decisions and the reasoning behind the decisions. Administrative Law - federal, state, and local level. Administrative law is made by administrative agencies that define the intent of the legislative body that passed the law. The sources of law have both vertical and horizontal dimensions. Vertical dimensions include federal authority, state authority, and concurrent authority.