It is possible to do a reverse license place search in order to
find out someone's name. Though it may not be easy, but there are a
few reverse license plate search sites that you could try, like
www.license-plate-search.org/
Do police know if your car is registered to an unliscensed driver?
They can find that info out by running the plate number and
then, when the owner i sdisplayed, running the name of the owner.
The owner of a vehicle does not have to have a license.
Where online can I find a license plate number by name?
DMV.GovtFiles.org is highly recommended, the only trouble with
this site is that you have to go through the trouble of signing up
and paying the required $30.00 for a one time use.