My point in the GP comment is that "recording crucial evidence" does very little to actually stop or prevent crime. It might help after the fact if not for all the policies around releasing serial criminals and not prosecuting "minor" crimes.
In practice, though, the police generally show up after the crime has happened and take statements. In some places outside of NYC, they actually use that information to catch people and prosecute them. In NYC it goes into a black hole.
I am sure the idea they had when they bought these things is the drone carrying a speaker and saying "Police, drop the gun," and the armed suspect will magically drop the gun, but we all know that's not going to happen.
The use I can see is chasing people who run on foot, but there are a lot of problems with that. They can just go into a building to escape, run around a couple of corners, or even just stand there until the real cops arrive and continue to evade arrest the old fashioned way.
In practice, though, the police generally show up after the crime has happened and take statements. In some places outside of NYC, they actually use that information to catch people and prosecute them. In NYC it goes into a black hole.
I am sure the idea they had when they bought these things is the drone carrying a speaker and saying "Police, drop the gun," and the armed suspect will magically drop the gun, but we all know that's not going to happen.
The use I can see is chasing people who run on foot, but there are a lot of problems with that. They can just go into a building to escape, run around a couple of corners, or even just stand there until the real cops arrive and continue to evade arrest the old fashioned way.