Mr. Enda Walsh:

There are three broad risk categories, namely open, specific and certified. Certified drones, which are not in operation yet, are more analogous to manned aircraft and have transponders. However, the majority of drones across that spectrum are required to have what we call direct remote ID. They broadcast over Wi-Fi and Bluetooth their operator registration ID, height, location, etc. That information can be scanned by anyone with a mobile device using a variety of free apps. That is very useful for the public to know for the purpose of reporting occurrences or reporting to us. They can hold up the phone and identify a drone, which makes our follow-up job a lot easier.