Excellent suggestion, include the City and State of your location in your post.
I also tend to tell folks 3 things over and over.
Freqs are found in the
DATABASE here using the link at the top of the page.
Information on trunking, how to program your scanner, what tones are used for, and other stuff is found in the
WIKI here using the link at the top of the page.
Location specific questions might be best answers in the
region forum that cooresponds to your location.
Ed