article_snippet: (CNN)New Zealand police have revealed a threat to contaminate infant formula and other dairy formula with poison, in an apparent attempt to blackmail government over government pest control policies.
article_snippet: Letters were accompanied by small packages of milk powder containing a concentrated form of 1080 (sodium fluoroacetate), a poison used by New Zealand's Department of Conservation to control introduced pest species such as possums and rats.
article_snippet: Letters threatened to contaminate infant and other formula with 1080 unless New Zealand stopped using the poison for pest control by the end of March, police said in a statement.
article_snippet: Blackmail carries a maximum sentence of 14 years jail in New Zealand.
highlights_snippet: New Zealand police reveal threat to poison infant formula .
  
highlights_snippet: Letters were sent containing contaminated formula and a demand to government .
  
highlights_snippet: Letters called for government to halt use of 1080 poison in pest control efforts .