London airport police to use surveillance drones - BBC News
George Trebess from the National Counter Terrorism Policing Headquarters said it was also possible that drones could be used during major incidents, including sieges or standoffs involving firearms.
Speaking to security experts at the Counter Terror Expo in London, he said: "The technology is transformative.
"With the new system we will be able to carry out missions around seven times faster than ground-based activity and at around 10% of the cost. We estimate £1.2m would be saved in three years."
It is thought the savings would come through having fewer officers patrolling airports on foot.
Look, savings, everywhere!
So... a reduction in the number of officers patrolling the airport means a big cost saving.
But......
When weather prohibits drone flights, where do they get more officers at short notice?