In Argentina, the government is using dogs to sniff out US dollars.
As part of a crack down on tax evasion, money laundering and cash being sent overseas, restrictions are being imposed on foreign currency.
Those restrictions have made the dollar, seen as a refuge from double-digit inflation, increasing difficult to find on the streets of the Argentine capital.
In an effort to curb the smuggling of millions in US dollars to neighbouring Uruguay, the government of Cristina Kirchner, the Argentinian president, has employed dogs to snif out the currency.
Al Jazeera's Lucia Newman reports from Buenos Aires.