Maori MPs were issued record bans from the New Zealand Parliament recently for their impromptu haka last year protesting a bill to wind back the Treaty of Waitangi. But haka has been pivotal in race relations in Aotearoa before. An event in 1979 at the University of Auckland triggered significant debate and change. Yet the incident was buried until Katie Wolfe helped dig it up to create first a play and now a documentary.  

• Guest: Katie Wolfe is a New Zealand film and theatre director and her people are Ngāti Mutunga Ngāti Tama, Ngati Toa Rangatira. Her new documentary The Haka Party Incident is screening at the Sydney Film Festival.