On Thu, 26 Feb 2004 01:48:16 -0800, "Gregory E. Rose"
disturbed the phosphur particles on my
screen with the following:

How effective are scanners in alerting the driver to highway
patrol cars while driving?

My guess would be that a scanner would be off little value in alerting
you to where a HP car might be unless you happened to hear that he was
working an accident at a certain location.

A CB radio transmission from a trucker will keep you better informed
as to the "20" of a smokey.