Hit and Run
Hit and run could disappear as a crime with a minor technological fix. When new cars are made, the computerised paint system should modify the paint formulation slightly, perhaps by adding some mildly radioactive markers to make the paint unique to that vehicle, effectively an encryption of its serial number. When a hit and run victim is found, there would likely be a tiny fleck of paint on them. By chemical or radioactive analysis of the marker chemicals, it would point to a particular vehicle serial number. In most cases that would finger the culprit.
There would come to be no motive for hit and run, so long as the penalty for hit and run were substantially higher than for drunk driving. Today, hit and run is primarily motivated by a desire to escape drunk driving charges.~ Roedy (1948-02-04 age:70)