understand a legitimate purpose
(I love, yet I hate, you ask how can this be?
I know not, but feel the agony ... Gaius Valerius Catullus)
Drones fly faster than cars drive and a rapid response to an officer in trouble MIGHT save his life
admittedly ... I'm conflicted.
If the use was limited to situations such as you described. I just don’t have faith that it will.