Wellington police have apologised to the diplomat Gerard van Bohemen for raiding his property after a tip-off it was an illegal meth lab.
Mr van Bohemen's central Wellington apartment was raided after a member of the public alleged methamphetamine was being manufactured there.
He said he had received an apology and was happy to put it behind him.
Radio New Zealand believes his adult children were living in the apartment, while Mr van Bohemen resides in New York as New Zealand's Permanent Representative to the United Nations.
Crime manager for the Wellington district, Mike Arnerich, said at the time the tip-off was believed to be reliable and was taken seriously because of the risk to the public.
But no clan lab activity was found and there was no link to the manufacture, distribution or use of methamphetamine, he said.