Drones give police an eye in the sky

Drones and other high-tech surveillance measures have been making a big impact in the fight against drugs and related crimes in Huidong county, Guangdong province, once known as a major production base for the so-called date-rape anesthetic ketamine.

Five drones have provided accurate data for police planning raids on drug labs, while also helping deter drug producers and traffickers, said Zhou Yongkun, Party chief of Huidong's Baihua township.

"Drones fly every day, mainly over local mountains, forests, large orchards and other target areas where police officers find it difficult to patrol and where secret drug dens might hide," Zhou said.