Two New Zealand police officers have travelled to China to help the authorities there, after a man was detained on suspicion of killing an Auckland taxi driver.
Hiren Mohini was killed in January in what police described as a frenzied knife attack, after picking up a passenger and driving from Sky City to the Auckland suburb of Mount Eden.
Police say 23-year-old Zhen Xiao was detained in Shanghai on Thursday by the Chinese authorities. Detective Senior Sergeant Hywel Jones and another officer travelled to China on Friday to help with evidential matters.
Police say discussions are under way with the Chinese authorities regarding the next steps in the investigation.
It may not be possible, however, to bring the suspect back to New Zealand to face charges.
The former president of the Criminal Bar Association, Graeme Newell, told Morning Report that as New Zealand does not have an extradition treaty with China, the suspect may have to stay there and face justice according to Chinese laws.
China still practises capital punishment.