The Government is moving to increase maximum sentences for knife-related offences while beefing up education and placing restrictions on the sale of knives.

A former detective on the Crewe double murder inquiry is backing calls for the unsolved case to be reopened.

Police have launched an investigation into the prison guards' union with a raid on the organisation's offices.

The solicitor-general is to appeal the sentence imposed on Isaiah Tai for killing Bay of Plenty regional councillor Hawea Vercoe.

There is no good reason to revisit the unsolved 1970 Crewe murder case, says the man who helped Arthur Allan Thomas win a pardon.

New on-the-spot orders will allow police to remove an alleged offender from a home for up to five days to "calm things down".

Two security guards won't face charges over the heat stroke death of a West Australian Aboriginal elder in a prison van.

Department of Corrections bosses found taxpayers could be liable for lawsuits from prison guards exposed to inmates' second-hand smoke.

A victim of two off-duty policemen found guilty of a drunken assault is calling for justice after their bid for a discharge without conviction.

Two police officers have been found guilty of assaulting a group of students in downtown Auckland after St Patrick's Day celebrations last year.

An emergency meeting has been called as the horticulture industry confronts what its says is the negative impact of cheap prison labour.

Allegations of police targeting Maori youths and improperly obtaining DNA samples may end up before the IPCA.

Three men gave DNA samples after being threatened with arrest, says their lawyer as the Hone Harawira claims widen.