It may be that the minister lacks the trust of his officials, possibly dating from his scapegoating of the ministry head, John Allen, when drastic staffing reforms went septic early in the Government's life. Or it may be that diplomats have always regarded immunity as a subject to be kept within their profession. Their behaviour in this instance suggests they go to some trouble to look after each other.
They exchanged formal letters in which the host requested a waiver of immunity and the accused's Government's refused it. Yet all the while they were having informal discussions with the Malaysians who say they were willing to waive immunity but the host allowed them to invoke it.
Foreign Minister Anifah Aman said yesterday, "The New Zealand side had offered an alternative for the accused to be brought back to Malaysia."
Mr McCully wants to know why he was not told about this before he and the Prime Minister faced questions in public. He is too quick to blame his officials, again.
He ought to have made sure of his ground before allowing what he now calls, "the unseemly situation" in which he and Mr Aman were contradicting each other.
There ought to be no doubt of New Zealand's position when a foreign representative is accused of a serious crime. A waiver of immunity should always be sought strongly. If immunity is invoked the fact ought to be made public, and it ought to be disclosed immediately, not concealed as this was for six weeks. If New Zealand invokes immunity for one of its own, the same principles apply.
Diplomats may be immune to a host country's punishment but not to disclosure of the disgrace they represent.