The Dominican friar and two companions deflated the 30m-high protective dome on the Waihopai spy base near Blenheim with sickles in 2008, maintaining the base supplied information to the United States National Security Agency and their action was necessary to prevent its contribution to torture and war.
They were acquitted of burglary and wilful damage charges in March this year but are being sued by the Crown to recover more than $1.2 million the Crown says it spent to repair the damaged dome.
Fr Murnane, of Auckland, will participate in another of the "public conversation" series hosted by the University of Otago Centre for Theology and Public Issues and its National Centre for Peace and Conflict Studies.
The event, hosted by Associate Prof Murray Rae, will be held at St Margaret's College, Leith St, at 5pm.
