There has been speculation that the murder of Sydney businessman Michael McGurk may be linked to revelations of bribes involving state and federal Labour politicians he said he had on tape.

John Key says a Treasury official lost a notebook containing secret government information intelligence services, later found by a journalist.

A journalist finds a notebook on a Wellington street containing information on merging NZ's spy agencies.

Hundreds of thousands of Kiwis would receive subsidies to buy healthy foods under a new system proposed by a Govt commissioned study.

The police say they are reviewing their property portfolio but deny there is a list of stations earmarked for closure.