Prince William: 'We can win animal trafficking battle'
Prince William has described those traffick illegal wildlife parts as "even more sophisticated" than they were two years ago.
The Duke of Cambridge is among representatives from 40 countries at a conference in Vietnam on the trade in endangered species.
He says organised crime syndicates are more agile, poachers stealthier and the brutality against rangers much greater.
But he said there was hope for the future.