Laws around the use of drones are becoming increasingly tight as the devices gain in popularity and near-misses with aircraft become more frequent.
An investigation by this newspaper has found that there were 83 documented incidents involving drones and aircraft – nine of which were in Sussex – between January, 2010, and October, 2018.
Anyone flying a small drone must always have direct visual contact with it. Breaking this law could lead to a fine of £2,500.
On July 30, 2018, it also became against the law to fly a drone above 400ft (120m) or within 1km of an airport or airfield boundary.
Anyone caught doing so could a face a £2,500 fine.
From November 30, 2019, all owners of drones weighing 250g or more will also have to register with the Civil Aviation Authority and drone pilots will have to take an online safety test.
Failure to comply could see people fined £1,000.
General aviation rules also apply to drone pilots.
Flying drones in a manner which is likely to endanger an aircraft could result in a five year prison sentence, as could causing an aircraft to endanger people or property.
And intentionally using a drone to commit an act of violence at an international airport could mean life imprisonment.
In January, 2019, the Government announced it would be bringing forward a draft Drones Bill which could give the police powers to issue on-the-spot fines for minor drone offences.
The Government also plans to widen the restrictions around airports to about 5km.
Of course, laws could be ineffective against those who seek to cause deliberate disruption - or even danger - to flights.
So the Home Office has said it is also pushing forward with the testing and evaluation of technology to detect and combat the malicious and illegal use of drones to protect airports and other sensitive national infrastructure.