The Post has created an updated data structure, version 2, which will become the default data structure as of mid November. Please review Data Versions below for high-level context on the updates. Detailed Documentation as well as a sample of data in the new structure can be found in Version 2.

In mid November:

• data-police-shootings/fatal-police-shootings-data.csv will be moved to data-police-shootings/v1/fatal-police-shootings-data.csv. This file will become a static archive of all data since Jan 1, 2015 in the V1 data structure.
• data-police-shootings/v2/fatal-police-shootings-data.csv and data-police-shootings/v2/fatal-police-shootings-agencies.csv will begin regularly updating with all data since Jan 1, 2015 in the V2 data structure.

In 2015, The Post began tracking details about each police-involved killing in the United States — the race of the deceased, the circumstances of the shooting, whether the person was armed and whether the person was experiencing a mental-health crisis — by manually culling local news reports, collecting information from law enforcement websites and social media, and monitoring independent databases such as Fatal Encounters and the now-defunct Killed by Police project. In many cases, The Post conducts additional reporting.

The 2014 killing of Michael Brown in Ferguson, Mo. began a protest movement culminating in the Black Lives Matter movement and an increased focus on police accountability nationwide. In this data set, The Post tracks only shootings with circumstances closely paralleling those like the killing of Michael Brown — incidents in which a police officer, in the line of duty, shoots and kills a civilian. The Post is not tracking deaths of people in police custody, fatal shootings by off-duty officers nor non-shooting deaths in this data set.

The FBI and the Centers for Disease Control and Prevention log fatal shootings by police, but officials acknowledge that their data is incomplete. Since 2015, The Post has documented more than twice as many fatal shootings by police as recorded by federal officials on average annually.

The Post seeks to make records as comprehensive as possible; the database is updated regularly as fatal shootings are reported and as facts emerge about individual cases. At times, there may be a lag between the date of the shooting and its inclusion in the database because of delays in reporting and data verification.

To provide information about fatal police shootings since Jan. 1, 2015, send us an email at [email protected].

Explore the interactive database

• Version 2:

  • Version 2 includes changes to improve the data schema, increase transparency around research methodology, and add data on law enforcement agencies.
  • Documentation and data formatted in the v2 data stucture can be found in /v2.
  • Details on the changes between v1 and v1 can be found in v2/README.md.

• Version 1:

  • Data formatted in the v1 data structure can be found in /v1.

Note:

• Until the official release in mid November, the data files in /v2 will include just a sample of records to demonstrate the new structure.
• After the offcial v2 release, the the data files in /v2 will include all records since 2015; historic records having been transformed into the new data schema.
• The v1 data will be static as of the migration to v2 in mid November; the data will no longer be updated after the project has transitioned to automatically updating the v2 datasets.

We welcome assistance in making the our data as complete and accurate as possible.

Please reach out with any questions about the data, feedback, updated information or corrections.

The best way to contribute to the data, make suggestions or provide information about fatal police shootings since Jan. 1, 2015, is to send us an email at [email protected].

Please note that we do not accept pull requests as the data file is automatically generated from our internal database.

The data is published under an Attribution-NonCommercial-ShareAlike 4.0 International CC BY-NC-SA 4.0 license.

Research and reporting: Jennifer Jenkins, Monika Mathur, Razzan Nakhlawi, Steven Rich and Andrew Ba Tran.

Design and development: Chris Alcantara, Katlyn Alo, Emma Baker, Aaron Brezel, Armand Emamdjomeh, Jake Kara, Paige Moody, James O’Toole and Leslie Shapiro.

Editing: Sarah Childress, David Fallis, Reuben Fischer-Baum, Meghan Hoyer and Courtney Kan.

Past contributors: Keith L. Alexander, Sophie Andrews, Jason Bartz, Amy Brittain, Swetabh Changkakoti, Hong Sen Du, Kennedy Elliot, Linda Epstein, Holden Foreman, Joe Fox, Wendy Galietta, Kaeti Hinck, Laris Karklis, Kimberly Kindy, Whitney Leaming, Emily Liu, Wesley Lowery, Ted Mellnik, Lori Montgomery, Deblina Mukherjee, John Muyskens, Erik Reyna, Danielle Rindler, Kavya Sukumar, Julie Tate, Susan Tyler, Divya Verma, Aaron Williams.