Police chiefs are investigating counter measures amid the “threat posed by drones” straying ito restricted London air space.
It comes as Met officers probe what was believed to be Britain’s first unmanned aerial vehicle strike against a plane, which was on a landing approach to Heathrow airport.
There were 132 passengers and five crew on board the flight approaching from Geneva, which was at 1,700ft – the legal maximum height for UK drones is 400ft.
BA said the plane landed safely and was cleared by engineers for its next flight.
Transport minister Robert Goodwill played down the incident, telling Parliament on Thursday it could have been a “plastic bag”, but Scotland Yard told the Standard on Friday that officers still believed the object was a drone.