C. Statutes are important because, like case law, they are primary authority. Courts are bound to follow a statute unless it is found to be unconstitutional. Bills are available from the government, often in microfiche, and can be obtained from the legislators who sponsored the bill. Each law is consecutively numbered as it is passed. C. Separate slip laws are gathered together in the order in which they were issued for each legislative session and published as session laws .
Session laws are usually several volumes with subject indexes and tables.
They also present notes on the historical development of each law. Codes are indexed and kept up to date by supplements. They also provide tables that indicate how to get from a session law to a code cite. E. Statutes and codes are usually republished by commercial publishers in annotated form. These annotated codes are very valuable because, in addition to the text of the laws and history notes, they provide abstracts of judicial opinions construing and applying the statutes and references to law review articles and other sources commenting on the statutes.