The BBC goes on patrol with Ecuador's police, who are grappling with a huge surge in drug crime.

On the front line of Ecuador's drugs war, police fight gangs, guns and corruption In the Ecuadoran city of Durán, riddled with drugs and rival gangs, Police Captain Jean Carlos Bustamante knows exactly what he is up against – not just the criminals who kill and sometimes dismember their rivals, but also the enemy within. "We have many, many bad people inside our unit, inside the state, inside politics," he says. "We have many, many guys that are corrupt. They are in the pay of the gangs." The only police officers he can trust, he says, are the ones right beside him - members of his hand-picked team. At 34, Captain Bustamante is the oldest among them and moves like the special forces officer he used to be. With the sun setting, he leads his team into a hardscrabble neighbourhood where windows are sealed off behind metal grills, and lips are sealed by fear. This is the heart of gangland, controlled by a group called Los Aguilas (Spanish for The Eagles). I ask what happens if local people speak out against the gangs. "They kill them," the captain replies. "So that's why they never say nothing." He's heading for an abandoned house where he believes weapons have been hidden (gunmen don't keep their guns at home). He and his team line up, hugging the wall, heavily armed, and tightly packed. A battering ram gets them through the door. They find two handguns – one rusty but the other ready to be fired - and ammunition for an assault rifle.