2d Later Case Service. A.L.R. Blue Book of Supplemental Decisions. Statutes and codes. Statutory laws are the laws passed by Congress and legislatures, and the United States and state constitutions. Case law is the interpretation of the statutory law by the highest courts of appeal in a particular jurisdiction.
Statutory law is recorded in books called laws, statutes or codes.
Initially the laws are published chronologically. However, since a particular law or statute may deal with a number of different topics, the contents of the various statutes also are arranged by subject into bodies of law called codes. The laws of Congress arranged in chronological order as they were passed. If you have a public law citation instead, for example PL 93-438, look up the law by Congress number. The Congress numbers are written on the spines of the Statutes at Large volumes.