POLICE training sniffer dogs at Paris’ top airport lost track of a passenger’s bag in which plastic explosives were placed, a police official admitted yesterday.

French police ordered a halt to their technique of using air travellers’ luggage to hide plastic explosives in exercises designed to train sniffer dogs, a police official said today.

Police training sniffer dogs at Paris’ top airport lost track of a passenger’s bag in which plastic explosives had been placed, a police official said today.