Wellington's Victoria University's controversial free speech debate is back on, with more speakers added.  

A panel discussion around the role of universities in free speech was meant to be held on Monday, but it was pushed to the end of May, after opposition from some students. 

Victoria University Vice Chancellor Nic Smith told Heather du Plessis-Allan they've added more people than anticipated. 

Smith said there’s now two debates - “People with a viewpoint, and people who are more interested in the principles and regulations of what speech is.” 

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