What's in this dataset?

Spreadsheet of every traffic citation issued by any police department in the Commonwealth between October 2, 2014 and November 22, 2019. The data shows the location of the stop, the issuing police department and officer, the race of the stopped driver, and the traffic law allegedly violated among other information.

Download Data

Note that this CSV is longer than the Excel row limit of 1,048,576 rows, thus it cannot be fully loaded in Excel. To download smaller CSVs broken down by year, visit the Pubic Records Request page linked below.

Number of Files 1
File Type CSV
Total File Size 542 MB
Total Number of Rows 2,534,643
Total Number of Columns 31


On November 21, 2019, ACLUM filed a request with the Massachusetts Department of Transportation requesting all data collected from Massachusetts Uniform Citations. The registry of motor vehicles was required to collect this data pursuant to Ch. 228 of the Acts of 2000 (“An Act Providing for the Collection of Data Relative to Traffic Stops”). ACLUM requested this information in anticipation of the changes to the law under the Hands-Free Driving Bill which will make much of this information publicly unavailable.

Public Records Request