Two golden labradors with sporting uniforms and leather shoes launched China's first drug-sniffing dog patrol on flights to Beijing this week, state media said on Wednesday.
The dogs are trained to hunt down passengers with drugs in their luggage or bodies by a "distinct smell on their seats that is detectable for up to two hours".
Wei Jingwen, an officer from Beijing Customs:
(SOUNDBITE) (Mandarin with English translation) WEI JINGWEN, AN OFFICER FROM BEIJING CUSTOMS ANTI-SMUGGLING BUREAU, SAYING:
"Our dogs can detect the smell of the suspects when they check the seats of the plane immediately after they get off."
Apart from the uniform and shoes, Weite and Haige both need to take a bath before boarding a flight.
On Monday, both dogs joined a flight from the United Arab Emirates to sniff every corner where passengers might have passed after they left the cabin in Beijing.
Sniffer dogs have helped Beijing customs seize 31 kg of drugs since 1996.
Kitty Bu reporting for Reuters in Beijing.