There are two golden rules for the citation of legal authorities. One is consistency. The other is consideration for the reader. Legal writing is more persuasive when the author refers to legal materials in a clear, consistent and familiar way.
The Oxford University Standard for Citation of Legal Authorities (OSCOLA) is designed to help the author to achieve consistency and to make life easier for the reader.
OSCOLA does not purport to be comprehensive, but gives rules and examples for the main UK legal primary sources, and for many types of secondary sources. As far as possible, the guidelines in OSCOLA are based on common practice in UK legal citation, but with a minimum of punctuation.
This latest revision of OSCOLA (the Fourth Edition) provides more detailed coverage of domestic legal sources, and in particular the treatment of Welsh, Scottish and Northern Irish sources has been considerably expanded.