Christian Solidarity Worldwide (CSW) says the country can no longer operate unchecked and reguarly commits some of the "worst abuses in the world."
In its new report on the closed nation it says "freedom of religion of belief is largely non-existent."
It is pushing the international community to act and for the United Nations (UN) to implement change.
Ben Rogers, East Asia team leader at Christian Solidarity Worldwide, told Premier why it is so dangerous to be a believer in the closed nation.
He said: "People are required to show total loyalty to the Kim [the family in power in North Korea] dynasty, any hint of a belief that deviates from absolute denotation to the Kim family is very severely repressed and so obviously in particular for Christians it is extremely dangerous to be a Christian in North Korea today."
The Kim family have been in power since the 1950's and current leader Kim Jong-Un took over power from his father in December 2011.
Ben Rogers said that those found worshiping another leader will be punished alongside their families who can pay for their crimes for years: "The policy of guilt by association is punishment of up to three generations - a person who's a Christian or indeed any other person who's committed, in the eyes of a regime, a political crime - not only do they go to the prison camp but their relatives up to three generations."
CSW has said that it wants to push the international community to urge North Korea to change the laws over freedom of religion.
In North Korea's constitution religion is described as a 'foreign intervention', but CSW wants the country to guarantee the freedom of religion promised by the UN.
Ben Rogers told Premier his prayer for the country: "We pray that you would liberate North Korea and that through the prayers of many, through the protest and advocacy of many, the people of North Korea would know that the world has not forgotten about them."
Listen to Premier's Rick Easter speak to Ben Rogers, Kiri Kankhwende, Mervyn Thomas and Stuart Windsor here: