Footage of the incident was discovered as part of a review into the prison being carried out after allegations of fight clubs between inmates and drug smuggling.

John Key has admitted he was surprised to find out there are 18 prisoners who have "slipped" their electronic monitoring bracelets currently on the loose.

Embarrassment for the Department of Corrections after fugitive paedophile Daniel Livingstone.

Expanding electronic monitoring of offenders could be at the expense of their rehabilitation in the community, a justice reformer says.

Additional staff have been brought in to Mt Eden prison since Corrections stepped in to run the jail last month, the department has confirmed.

The Government is right to press ahead with plans to extend the use of electronic monitoring of offenders. But they are far from infallible.

Labour MP Kelvin Davis visits criminals at Paremoremo prison to collect further stories about inmates' treatment at Mt Eden Corrections Facility.

Following two high-profile cases of child sex abusers breaching GPS-tracking conditions, the Government says it will expand the use of electronic monitoring.

A murderer serving a life sentence at Auckland Prison in Paremoremo developed such an infatuation for a Corrections officer he had her name tattooed across his chest.

A crowd of about 100 protesters have gathered outside Auckand's Mt Eden Corrections Facility today against the privitisation of jails.

A Corrections Department management team has taken over the day to day running of the prison for the immediate future.

New claims have emerged of unrest at another jail soon after scandal engulfed Mt Eden prison.

John Key says there will be serious consequences for Serco if they are found to not be meeting obligations.

A prisoner, who was so badly beaten he sustained serious brain injuries, is taking Serco to court in a private prosecution - the first of its kind in New Zealand.

The Prime Minister says there will be serious consequences for Serco if they are found to not be meeting obligations at Mt Eden Correctional Facility.

A former Mt Eden inmate reveals tobacco and drugs are regularly available, and shows David Fisher how they are smuggled in.

Corrections Minister Sam Lotu-Iiga denies the takeover indicates a loss of confidence in operator.

Minister says Government team is stepping in to run Mt Eden prison, after private firm rocked by allegations of violence.

Faced with a growing backlog in the already overloaded justice system, a frustrated judge has criticised Serco's Mt Eden prison for not doing its job.

The inmate whose death is at the centre of a prison violence scandal is the grandson of a National Party stalwart who died just weeks later.

Corrections chief executive Ray Smith revealed a new case of a prisoner being injured at the privately-run Mt Eden Correctional Facility.

Serco has been fined $300,000 in the last year for breaching its contract with the Government, the Corrections Minister revealed this afternoon.

Under-fire Corrections Minister Sam Lotu-Iiga has hauled in prison operator Serco for an urgent meeting today.

Embattled Corrections Minister Sam Lotu-Iiga is defending his handling of the controversial death of a prisoner at a privately-run prison.

Labour MP Kelvin Davis says the Corrections Minister has lost control of his department.

“This behaviour of prisoners is unacceptable," said Corrections Minister Peseta Sam Lotu-Iiga.

The Corrections Minister has announced a "robust and thorough" review over footage of inmates engaging in banned behaviour in New Zealand prisons.

New wearable cameras and stab-resistant body armour will be introduced for prison guards, the Corrections Minister announced today.

Two teenagers accused of the murder of a man in an Auckland motel have appeared in the High Court.

A Government inquiry into the escape of convicted murderer and paedophile Phillip John Smith has been extended.