Journal articles often provide up-to-date information on very discrete topics, and can provide alternative views on a topic. How much information you have determines your starting point (see finding law journals).
Use the Legal Citations of Aotearoa New Zealand to decode the abbreviation of a New Zealand journal.
Use the Cardiff index to legal abbreviations to decode the abbreviation of a non-NZ journal.
These databases provide a broad range of journal articles, but not always the full text of the article.
Quick guide to search operators in selected databases.