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Ever wondered how cash detecting dogs learn to sniff out money?

As kaitiaki or steward of cash, we lend cash to the New Zealand Police and Customs to train cash-detecting dogs.

What do cash-detecting dogs do? 

Cash-detecting dogs, like Toby and Ouzo are trained to detect the scent pool of large volumes of cash.
Toby
Toby
Ouzo, a NZ Police cash detecting dog
Ouzo

You’ll see them working at airports, ports, on ships, at warehouses and alongside NZ Police. They can help to find large amounts of undeclared cash which helps protect our country from potential criminal activities such as money laundering and terrorism funding. This is carried out under New Zealand's Anti-Money Laundering and Countering Financing of Terrorism (AML/CFT) Act. 

As well as cash, the dogs are trained to detect drugs and firearms.

Our work with NZ Police and Customs

When it comes to finding hidden money, it’s all about the smell. Even though New Zealand’s banknotes are made of a type of tough plastic called polymer, they have a distinct smell that the dogs are trained to instantly recognise.

To help these dogs learn the scent of cash, we have loaned NZ Police and Customs some real banknotes and bags of old shredded banknotes. Shredded banknotes and whole banknotes smell the same to cash-detecting dogs.  

Watch cash-detecting dogs in training

We've been working with the NZ Police and NZ Customs on this since 2013. As well as helping to enforce the law, our work with the NZ Police shows the important role cash as central bank money plays in building trust and confidence in the financial system.  

$5 banknotes used for training
$5 banknotes used for training
 Shredded banknotes used for training
Shredded banknotes used for training
Willow, a NZ Customs detector dog
Willow, NZ Customs detector dog