Now entering its fifth edition, this perennial text has been modernised with the new title Joseph on Constitutional and Administrative Law. The new edition builds on the strengths of earlier editions, coupling historical and contemporary analyses of public law principles.

A key development with the fifth edition is the new chapter that records increasing integration of tikanga Maori in legislative and judicial developments. The author interprets these developments as comprising a new form of legal pluralism that signals a distinctively indigenous, New Zealand jurisprudence.

The author, Philip A Joseph, is an acknowledged authority on New Zealand constitutional and administrative law.