That’s a good point. I can tell you from firsthand experience that the abundance of cameras in our society absolutely have a profound effect on the ability of law enforcement to solve individual crimes. To the point you are making how do we transfer those successes into reducing the level of crime?
My thoughts on that are probably not very popular on here and those are to just build larger jails and equip those with drug rehabilitation options. The larger jails allow us to not just kick the people back on the streets immediately but compel steps that help eliminate recidivism. Another source of criminal behavior is mental illness. I have no clues on how to fix that except perhaps concentrate on the causes.
All these cameras and recording devices exist for that same reason Advil exists in that it helps a toothache. Doesn’t really solve the problem but fights the symptoms.
If you think prisons turn criminals into law abiding individuals, or that that's even their purpose, you've got some more figuring out to do before teaching.
The US already has the largest prison population in the world and yet still has extremely high crime on par with countries that lack functioning goverments. So how exactly are more prisons and arrests going to lower crime when it has failed to do so for decade after decade?
Your cure is worse than the disease! Our risk of violent crime is lower now than almost any point in history. We make crime better by improving the lives of the average person. Jails don't fix socioeconomic issues, they in fact make them worse.