Ivory destruction Despite efforts to destroy ivory, criminals are becoming more organised, ingenious and dangerous. "We have seen more and more organised crime networks moving into the wildlife trade," says Davyth Stewart from Interpol, the international intelligence agency. "Groups who have been traditionally involved in drug trafficking, fire arms and human trafficking are now moving onto wildlife." It's clearly not a fair match: conservationists pitted against criminal gangs. But the wildlife experts say it's a fight they have to take on. They have gathered at the Zoological Society of London to tackle how to halt the rapidly growing trade in animals. The backdrop to these crisis talks is bleak. Thousands of rhinos, elephants, tigers and others have been slaughtered, becoming part of an illegal market that's worth an estimated $19bn a year. Many criminals see it as low risk, high profit, says Mr Stewart. "There is a lower risk of apprehension, it's unfortunate but law enforcement has not invested the resources in attacking wildlife crime as it has in other crimes," he explains. "Even in courts the penalties are much lower. Just last year in Ireland, we saw two people arrested for smuggling rhino horns worth half a million euros. They received a 500-euro fine." Demand and supply John Sellar, the former chief of enforcement at Cites (the Convention on International Trade in Endangered Species), says the focus of the battle should be shifted away from conservation towards the issue of criminality. "It's about locking up the bad guys," he tells the conference.

Rangers in the Democratic Republic of Congo's Virunga park have a new weapon in their fight against poachers. National Park authorities have trained five bloodhound dogs to track elephant poachers after a spate of incidents. The first investigation using the dogs was carried out last week and led to the discovery of illegal weapons. Poaching is one of the key threats to the animals in Virunga, a Unesco World Heritage Site in the war-torn eastern region of DR Congo. The park is also home to gorillas, chimpanzees, okapi, forest elephants and buffalo, among other wildlife. Some 300 rangers protect the park from poachers, rebel groups and illegal miners. 'Effective weapon' Park authorities now hope the bloodhound programme, which was implemented with help from a specialised Swiss centre and volunteers from the German police, will help to protect the vulnerable elephant population from ivory poachers. The dogs and their handlers got the chance to put their training into action on 1 March, when rangers spotted a dead elephant with its tusks cut off on the edge of Virunga.