Closed public institutions are not seldom the target of criminal acts. The cycle of important, often secret state information makes state facilities a tidbit for any kind of espionage.
Airports are targets of terrorist attacks and means of transportation for smugglers. Current airport security systems are technically incapable of dealing with air threats posed by unmanned aerial vehicles (UAVs).
The stadium is an enclosed space of great capacity, the actual problem for which is the withdrawal of people. Even a small damage that can cause UAV can lead to mass panic and, as a result, crush.
Any mass event is subject to all kinds of risks. These may be trivial attempts to disrupt or sabotage the event, or situations that endanger the lives of participants. A large number of people who are limited in movement ...