Northland police have launched a homicide investigation after their enquiries revealed a Far North man had been fatally poisoned from a bottle of wine left in his letterbox.
Police are appealing to the public for information following the suspicious death of 67-year-old David Davan in December last year.
The Herekino local died in Auckland Hospital on December 9 after becoming unwell in November.
Davan's death was initially treated as unexplained. However, further police enquiries uncovered a more sinister explanation - he had been poisoned.
Police determined he had consumed poisoned wine from two bottles that had been left in his letterbox. An examination revealed only one of the bottles contained poison.