It would eliminate drive by's (gangs)
Bank robbery.( handing the bank teller a note, this is stick up without a gun)
Domestic violence that resulted in the killing of mate, children and etc would go down.
Road rage. You may flip the guy off and that would be the end on it.
And of course, mass murders.
I know this will never happen, but I was thinking how many lives would be saved and how
it MAY lower the crime rate.