I really like the site http://www.spotcrime.com. It allows you to search date ranges and radius from a specific address. You can also set up automatic updates to see what is happening in your neighborhood.
I would call the sheriffs office or state police and ask them to give you the information- they will have it recorded somewhere I'm sure! I live close to Annapolis and would be happy to help you look for a home if you are not working with an agent already!