Read more: Scientist: White Island eruption was 'basically instantaneous'
AUT criminal law professor Warren Brookbanks says tour company operators involved could face manslaughter charges if found criminally liable for failing to protect customers.
WorkSafe has also launched an investigation under the Health and Safety in Employment Act, which could result in "draconian" penalties, including jail time or millions of dollars in fines.
In my view, hard as it will be for many people to stomach, adventure tourism comes with risk and when Mother Nature is involved those risks are unpredictable and merciless.
Read more: White Island eruption: Teen tour guide Jake Milbank faces long journey to recovery
White Island is an active marine volcano. For the past 30 years, tourists and Kiwis alongside scientific research teams have made a pilgrimage to the crater without any major incident.
Known to Māori as Whakaari, visitors typically clamber off a boat or are flown into the attraction which has been continuously bubbling for 150,000 years.
The number of times it has erupted is not exactly known but previous activity was recorded from March to September in 2000 and again in 2012.
Visitors are given gas masks to protect them from sulphurous gas and fumes and need to wear hard hats.
So when people sign waivers are they doing it on a whim without really thinking anything bad will actually happen?
Read more: White Island eruption: Video unearthed of tour guide Hayden Marshall-Inman speaking of his fears
I have not been to Whakaari but I have visited Gunung Agung in Bali which is also an active volcano that has continuously erupted since 2017.
I knew the risks.
In my opinion, it is not fair to lay the blame with tourism operators. There is no doubt in my mind they are also reeling from this catastrophe.