It is estimated that 38,000 elephants are slaughtered for their tusks each year in Africa.

And much of it is smuggled into Thailand - a renowned hub for ivory smuggling. Most of the ivory crafted there eventually ends up in the US and Europe.

As elephants are a national symbol in the country, Thailand does allow the sale of ivory - but only under strict wildlife  protection laws.

Al Jazeera's Aela Callan reports from Nakhon Sawan, the ivory capital of Thailand - where about half the tusks sold are illegal.