Almost invariably this is a published work, i.e. a book or an article in an international journal, and establishes the author as an international authority in a particular field of law.
The level of attainment required for a higher doctorate is higher than that required for the PhD degree and its award carries great prestige within the University and New Zealand legal community.
If you've got at least 10 years of post LLB experience in an area of law as a practitioner and/or an academic, then this doctorate degree may suit you.