Cameras can’t stop crime. They can only help investigation.
For most violent cases, the perps are let right out anyway.
But you can be pretty sure there will be a lot fewer expired tags.
“Cameras can’t stop crime. They can only help investigation.”
I think you are right. Cameras are not going to prevent many murders; but cameras can help to identify murderers, convict them, and get them off the streets.
Locking up murderers in prison - which more and more people oppose - does help to prevent future murders.
Whether or not murderers have an expectation of privacy on a public street is another matter. I don’t think they do.