New Zealand prisoners have been subjected to degrading treatment, a watchdog has found.

A prisoner who a probation officer tried to warn was too dangerous to release will spend full sentence behind bars after bottling a man while on parole.

Murderer George Baker was involved in a stand-off with police at Auckland's North Shore Hospital after he was uncuffed by Corrections staff and "smashed up his room".

Activists have chained themselves in Corrections offices in protest at the treatment of a transgender prisoner.

Serial sex offender Stewart Murray will not be subject to intensive or extended monitoring, the Department of Corrections has confirmed.

Infamous escapee Phillip John Smith is suing Corrections for confiscating the hair piece he used as a disguise to flee the country in 2014.

Cancer-stricken Vicki Letele has spoken out about the anger she feels towards the way she was treated in prison.

The proper response when someone is terminally ill is to offer support and comfort.

An implement was used in an assault against four Christchurch prison guards last night.

Infamous inmate Arthur Taylor has been denied en early release from prison and will appear before the Parole Board again in March.

An ex-prisoner has been awarded over $30,000 in legal costs after his release date was miscalculated.

An investigation by Corrections into "fight clubs" at Mt Eden prison found evidence that similar fighting rings were being run at other prisons.

The family of Vicki Letele has been pleading for the fraudster to be let out of jail early so she can be with her family.

Corrections has agreed to take another look at whether a woman who is dying in prison should be released early.

Four inmates from New Zealand's toughest prison have been charged after a brutal attack on six prison guards last month.

A prisoner suffered pain for months after an infection and was denied medication and given food so hard he couldn't eat it with his swollen mouth.

One of New Zealand's most high-profile criminals is heading back to the Parole Board next week in a bid to get an early release from prison.

New figures show that almost 250 offenders removed their electronically monitored trackers during the 2015/16 year.

The Herald has learned that six guards were injured in an attack at New Zealand's toughest prison, with three suffering stab wounds to their heads.

Assaults on prison guards by inmates have increased by more than 100 in the last year.

A prison guard hospitalised after an attack at Paremoremo has been discharged.

Three members of staff at the Paremoremo Prison required medical treatment after being assaulted by a group of prisoners.

Corrections Minister Judith Collins said prison population growth required a further 1800 places.

COMMENT: Making unlawful detention subsequently lawful only deepens the outrage.

A human rights lawyer says the case for compensation is strong for those held in jail too long as a result of Corrections misinterpreting the law.

Prisoners could walk free today and Corrections Minister Judith Collins will be briefed on the fall-out from the miscalculation of parole and release dates.

Maori are twice as likely to go to jail than Pakeha when convicted of assault.

The changes aim to identify women at risk of family violence early in their prison sentences so appropriate support can be organised.

One of the country's most brutal killers has been moved into a high risk unit following an incident at prison involving an "improvised weapon".

Corrections is defending its decision to place two high-risk sex offenders in a Hamilton boarding house where young kids were living.