In case this would have been drone flight falling under 14CFR part 107, at least these come to mind. - 107.41: over Tererboro airport and did not appear to hav

In case this would have been drone flight falling under 14CFR part 107, at least these come to mind. - 107.41: over Tererboro airport and did not appear to have contacted ATC (air traffic control) and/or obtained waiver to operate in class B-E airspace - 107.51: They flew above 400 feet - 107.31: did not maintain VLOS with their drone (Visual Line of Sight) - 107.43: interfered with operation of airport - 107.39: possibly flew UAS over people - 107.51: possibly within 500 feet vertically or 2000 feet horizontally from clouds - 107.37: possibly (b) No person may operate a small unmanned aircraft so close to another aircraft as to create a collision hazard Under CFR 14 part 107 you could request an waiver from FAA for a specific mission to fly above 400ft or outside VLOS or within different class airspace’s etc. 107.21 states also: In an in-flight emergency requiring immediate action, the remote pilot in command may deviate from any rule of this part to the extent necessary to meet that emergency. I suspect they had not. Summary of FAApart 107: https://www.faa.gov/uas/media/Part_107_Summary.pdf https://www.faa.gov/uas/media/Part_107_Summary.pdf Note: in the us you can also fly under section 336 (model aircrafts) or under section 333 (pilot licensed remote pilots). But without checking the rules, I think differences would be minimal (e.g. ability obtain waivers, technicalities for ops near airports - e.g. 5 mile rule instead of airspace considerations).