I did a ride-along with a cop outside of Boston about 12 years ago. His car had a laptop attached to the dashboard, an innovation that only started appearing in the 1990s. One thing that he was able to do was instantly look up the plate on a vehicle without having to radio it in -- and the lookup interfaced with what I assume was an updated database of stolen cars.<p>Another technological innovation he mentioned was the positive effect of the Lo-Jack stolen vehicle recovery system (<a href="https://en.wikipedia.org/wiki/LoJack" rel="nofollow">https://en.wikipedia.org/wiki/LoJack</a>). It not only instantly sends stolen vehicle information to police systems, but also activates a beacon on the stolen vehicle which specially equipped cruisers can detect and follow.<p>I imagine innovations such as these impacted the theft rate over the past 25 years, and also helped law enforcement agencies identify and arrest serial offenders responsible for large numbers of thefts. Didn't see it mentioned in the NYT article, though.