Sure, but a lot more crashes are caused by poor design (including design that facilititates law-breaking) than mechanical failures or lack of enforcement.
In particular, I want to address the latter: trying to stop people from speeding by having more police patrols simply doesn’t work. The only thing that does work is physically changing the design of the street (narrowing lanes, etc.) to make it scarier and less comfortable for drivers to go too fast. That’s the engineers’ responsibility, not law enforcement’s.