Radio tags to prevent luggage going missing at airports are to be tested at Heathrow.

A six-month trial involving 300,000 bags is being run by Emirates and BAA, the airport’s owners.

Luggage on flights between Heathrow, Dubai and Hong Kong will be tagged, using a technology known as radio frequency identification.

The initiative will be watched closely by the International Air Transport Association, the industry’s governing body.

Lost baggage is one of the biggest problems facing airline passengers.

According to the Association of European Airlines, an average of 16.6 bags per thousand passengers fail to reach their destination at the same time as their owners – roughly three bags a flight.

The radio chips will be fitted on luggage tags alongside the conventional bar codes.