Some things to consider in evaluating all types of sources*:
Currency: Is the information current and up-to-date?
Relevance: Does the information have anything to do with your topic?
Authority: Is it authoritative?
Accuracy: Is reliable and true?
Purpose: Why does the information exist?
Check the acronym. Did your website pass the CRAAP Test?!
*Criteria adapted from the CRAAP Test, Meriam Library, California State University, Chico
Examples of primary legal authority include constitutions, statutes, and case law.
Primary Authorities are:
Administrative Rules and Regulations