One additional suggestion might be to take a drive through on a Saturday when people are out and about and talk to the neighbors. That might give you the best idea as to whether it is the area you wish to buy in.
Mansur is correct. Realtors cannot answer these questions due to Fair Housing Laws. I am connecting a Link that the Washington Post which has now installed a resource which is called "Local Explorer". It will show you where all the "local" crimes reports have taken place. Sorry we can't give you more information. Your other resource is to ask some of hte neighbors.
Gary J. Rudden, Broker/Owner
Congressional Residential Realty