These dashboards are automatically published to mass.gov per M.G.L. c. 140 §121E(a). All data is anonymized and aggregated.
Developed by DCJIS, EOPSS, and EOTSS pursuant to Chapter 135 of the Acts of 2024 (An Act Modernizing Firearm Laws). All data suppresses values with fewer than 5 records to protect individual privacy per M.G.L. c. 6 §172. Source data flows from MIRCS, OCME, NIBRS, ATF eTrace, and the MA Crime Gun Database (131Q).