Pressure is mounting on South Australia's new Liberal government to change the law to keep notorious paedophile, Colin Humphrys, behind bars.

The 66-year-old's successful bid for freedom means he could be released from prison to live in the Brompton and Bowden area on May 14 - a decision that has left residents outraged.

"I can't believe they're going to bring someone here that could potentially endanger kids," Hannah Cursaro said.

South Australia's new Liberal government is facing mounting pressure to change a law that would see this man, convicted paedophile Colin Humphrys, released from prison. Picture: 9NEWS. (9NEWS)

The person with the power to prevent that from happening is South Australia's Director of Public Prosecutions, Adam Kimber.

He'll have 10 days to consider appealing the judgement, and the state's new Attorney-General isn't ruling out forcing his hand.

"It's currently the law that allows for the DPP to be directed," said Vickie Chapman on Wednesday.

Humphrys, 66, has successfully bid for freedom from jail, leaving the South Australian Director of Public Prosecutions with a decision to appeal the judgement. Picture: Supplied. (9NEWS)

"That is not necessary in this case, the DPP is upstairs doing exactly what he's meant to be doing."

She's also indicated that she will consider legislative changes if an appeal fails.

"One is to more specifically define risk and obviously what thresholds are required for the purposes of judgement," she said.

The state's Victims' Rights Commissioner is urging her to do so.

"If the Parliament decides that these types of people should remain in prison forever, then it's the job of the Parliament to enact that sort of law," Michael O'Connell told 9NEWS via Skype from Nigeria.

"This man should not be allowed or given the opportunity to create more victims."

He says the judgement has been a blow to the victims of Humphrys' horrific crimes, which span across five states and three decades.

"They have the right to feel aggrieved, they have the right to feel angry, they have the right to feel let down."

If Humphrys is released, it will be under strict conditions. He will be carefully monitored, forced to attend counselling session and take medication to diminish his sex drive.
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