"Twenty years ago, on 29 June 1987, the Court of Appeal of Aotearoa/New Zealand handed down a landmark decision interpreting the principles of the Treaty of Waitangi: New Zealand Māori Council v Attorney-General. ... Twenty years on the courts, government departments, and many others have continued to look to this 1987 case, commonly referred to as the Lands case, for guidance and stimulation in pursuing legislative commitments to Treaty principles. Today, it is still described ... as "arguably ... New Zealand's most important 20th century constitutional decision", and "the circuit-breaker for modern Treaty jurisprudence". On 29 June 2007, The University of Otago hosted a symposium to mark this monumental case. This book is the record of what took place on that day." -- Introd., p. 1.