If you find a drones, what you do will be different depending on the situation and environment. Unconditionally destroying or landing may be possible during combat, but may be impossible or even more dangerous in general civilian or non-combat situations. That is, in most situations it is important to move dangerous drones out of the defensive area as quickly as possible.
Recently, the sudden spread of the drone has caused a sudden increase in accidents using the drone. In particular, terrorism using drones, import and export of goods and information leakage in prisons and security facilities are becoming big problems. Drones flying in the air are the most difficult to detect and defend, so you need a more effective countermeasure.