Take a look at teh crime maps listed on Trulia: http://www.trulia.com/real_estate/Boston-Massachusetts/crime/
Hope this helps!
Ali, Community Manager
1.) Call the local police department
2. ) Google the Street Name and see what pops up
3. ) Spend time in the neighborhood by driving through during different hours
4. ) Go for a walk in the area and talk to people or ask a mail man
Just some thoughts