Law

One of the problems for the language of law is that much of law is specific to a particular jurisdiction e.g. a country or territory. Legal concepts may exist in one jurisdiction and not in another, or might have different meanings in different jurisdictions. So, a good starting point is to make effective use of dictionaries.

Law Dictionaries
An encyclopaedic-type resource, if you are a university student and your university subscribes, is the Oxford Reference There you can search within the law category and read entries on concepts in some quite specialist legal dictionaries.

A good free resource that is particularly good for English and North American law is the free dictionary as it has a legal category.

Law Journals and Magazines
There are many legal journals although you will find that the majority need to be accessed through institutional accounts as they are available through subscription databases. Here you will find a list of English language jurisdictions' law journals together with a very valuable list of abbreviations used for those journals.