Here's a crime fighting idea not to be sniffed at: Dutch police are asking citizens to use their noses to help track down illicit cannabis plantations.
Police and municipalities in Rotterdam and The Hague this week mailed 30,000 scratch and sniff cards that give off the pungent odor of cannabis plants to help people identify the smell of a plantation.
The card says: "From now on, you'll be able to smell the possible danger of an illegal cannabis crop in your neighborhood."
It advises citizens to call police if they think they have sniffed out a plantation.
Possessing and using small amounts of cannabis is tolerated in the Netherlands, as is growing up to five plants for personal use.
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