Longhurst said there is dignity in surviving abuse and it is nothing for the victim to be ashamed of.
"If the Royal Commission or someone could help the country see that there is only dignity in surviving that kind of abuse then more people would come forward.
"There's tremendous courage in coming forward and to realise that I was the victim of abuse but that I have survived that."
He said many victims of abuse deal with it by leaving the institution and just getting on with their lives - which is a legitimate choice but can leave their trauma unaddressed.
Dr Christopher Longhurst: "There's tremendous courage in coming forward." Photo / Supplied
"They don't have to identify as victims or survivors but they were affected. They can simply report the abuse."
Longhurst said the Catholic Church must be held accountable now, before the Royal Commission reports back.
"The Catholic Church is in a position to already be obliged to do something because it is a church. It should already be helping based on its principles of justice, its Christian values, it should already be doing what we want it to do, but for some reason it is not.
"These people [victims] are afflicted and hurt in its own institutions by its own members."
Longhurst said survivors want the Catholic Church to be held to account like any legal entity and for the Government to make that important change.
Priests and bishops of the Catholic Church in New Zealand are not regarded as employees, but are seen as employed by God, Longhurst said.
"This is an extraordinary absurdity and therefore there is no accountability.
"What the Catholic Church is doing today in New Zealand is presenting very well on policy and paper and the Catholic Church is spending hundreds of thousands of dollars on public relations about the safety and protection of children for the future, and while that's all very well and good ... that's a reaction to the pressure that SNAP and survivors and victims put on it to make those changes.
"The Catholic Church wouldn't be doing anything apart from its own historical process of trying to cover up."
SNAP backs the work the Royal Commission is doing but thinks it might be going too slowly.
Longhurst said the commission's interim report released in December had nothing surprising in it.
"Why hasn't it provided some recommendations. What is the point of an interim report? Just to make a report?"
SNAP supports the call from many survivors for the establishment of an independent body to oversee all abuse in care claims and to provide redress, thereby allow survivors to bypass approaching the very organisation that abused them.
"It is certainly idealistic because how independent can it possibly be, but there does need to be one. For healing there needs to be legitimate redress to restore the damage done," Longhurst said.
He believes New Zealand could be a world leader in dealing with abuse in care.
