BEIJING, May 27 (Xinhuanet) -- An unwitting passenger who flew to Tokyo received 142g cannabis compliments of the customs authorities after a sniffer dog failed a test, media reported on Tuesday. 

    An officer at Narita International Airport on Sunday stuffed a cannabis package into a suitcase belonging to a passenger arriving from Hong Kong so that the animal undergoing training could detect it. 

    "The dog couldn't find it and the officer also forgot which bag he put it in," a customs office spokeswoman said.

    Now, the Tokyo customs has appealed to the passenger who finds the package to return it.

(Agencies)