The threat to contaminate infant formula with 1080 would have posed more than one dilemma for Fonterra, Federated Farmers and police.
Finding the culprit is the first. When to tell the public was the second.
Federated Farmers and Fonterra received anonymous letters in November.
Small packages of milk powder, which later tested positive for a concentrated form of 1080, accompanied the letters. The letters carried a threat to contaminate formula with 1080 unless New Zealand stopped using the poison for pest control by the end of March.
Three months after the threats were made, the culprit is still at large, and with the end of March deadline looming, the public must be told.