Note: if you are beginning the exploration of your topic, then start with the summary resources discussed in the guide Law: Research Effectively with Secondary Sources.
To locate the legal information you need using these resources, you must first understand the types of law, how they are made, who is responsible for those laws.
Generally, laws can be grouped into 4 areas:
You also need to understand how jurisdictions influence the publication of law materials and the concept of precedence.
Note: A law review journal is a journal typically published by students at a law school or a bar association. Often these are reviews of legal cases and a discussion of legal issues and are not considered empirical research. They will often be used by lawyers to discover relevant cases for their client's case.