Well, ordinarily, I would tell people to go to the community website to search for crime maps and statistics. However, in visiting the Columbia Heights website, it's woefully inadequate to provide the information you seek.
I'm thinking the best way to get current information is to call the police department and ask your questions.
And, you provide yet another opportunity to point out that real estate agents cannot discuss specific areas' crime rates when working with buyers. It's interpreted by the Dept. of Commerce as potential steering based on what WE think is acceptable rather than what the BUYER thinks is acceptable.