This Wednesday marks the one year anniversary of the eruption and Baisden said people are being denied the ability to analyse the details of what happened.
"The WorkSafe investigation hasn't even announced who's being charged with exactly what and we don't know how long the whole process will actually take."
Baisden said although disaster preparedness can still be considered, the case of GNS and Whakaari in terms of the eruption that happened a year ago probably cannot be considered in much detail due to the charges.
Scientists should not just be able to give free and frank advice to the government but that should be followed up quickly with scientists providing information to the public via the media, he said.
Baisden said an example where this was stymied was in Italy where Italian scientists were jailed after the 2009 earthquake in L'Aquila which killed 29 people.
Baisden said scientists are concerned the charges could discourage scientists from speaking out.
"Six earthquake scientists were prosecuted in that incident and it was investigated, they were eventually acquitted when it became clear it was the government that had rehashed and miscommunicated the messages that they'd delivered.
"So it is potentially chilling and you can imagine what it's like to be a scientist in this sort of environment, where perhaps people have trained for their entire career and only have one major event where they can use their skills developed over a career to help protect the public - what happens if it doesn't go well?"
Baisden said a lot can be done to ensure scientists communicate well during a disaster, including hearing from a range of voices including Māori.
"We can reach into, for example, indigenous knowledge which Dan Hikuroa and Te Pūnaha Matatini has pointed out can be precise and accurate and rigourous in conveying knowledge of past hazards.
"The trick is making sure that it is out there in ways that help us through the whole crisis and prevent misinformation taking hold."
- RNZ
