GNS Science is one of thirteen parties charged by WorkSafe over the Whakaari White island explosion last year that killed 22 people.
The Crown Research Institute is responsible for alerts over volcanic activity at the island.
Professor of volcanology at the University of Auckland, Shane Cronin, says he hopes the tragedy will lead to improved volcanic hazard management.
But he also hopes the WorkSafe legal action won't deter scientists from making public statements on volcanic activity for fear of being prosecuted.
He speaks to Susie Ferguson.