View more

We believe truth leads to accountability. Enabling accountability for human rights violations is our highest purpose.

Get our newsletter

We are statisticians for human rights
Being independent, non-profit, and non-partisan, we can apply rigorous science to the analysis of human rights violations around the world. As scientists, we work to support our partners—the advocates and human rights defenders who “speak truth to power”—by producing unbiased, scientific results that bring clarity to human rights violence and by ensuring that the “truth” is the most accurate truth possible. Three directives guide our work:  

Apply science to create new knowledge

We help to establish a scientifically defensible historical record of human rights abuses, including publishing public reports and providing expert testimony in war crimes trials.  

Conduct basic research and development

We invent and extend scientific methods so that we can better understand patterns of mass violence.  

Educate through outreach

Through speaking engagements, publications, and training graduate students, we help those working in the human rights community to better understand the role and power of statistical data and reasoning.  

Projects We’ve Been Working On


The Syrian Calamity

At the request of the United Nations Office of the High Commissioner for Human Rights (OHCHR), HRDAG undertook a comparison of seven datasets documenting killings in Syria. Based on this analysis, we found 59,648 unique, identifiable records of killings between March 2011 and November 2012. Our work on Syria continues, paying special attention to what is happening in the Syrian prison system... Read more.

Killings by US Police

Having worked in more than thirty countries facing oppressive violence, our experience tells us that official homicide reports are often inadequate. A recent Bureau of Justice Statistics report claimed that from 2003 to 2009 and 2011, there were approximately 7,427 US homicides committed by police. Through careful analysis of BJS data and methods, we arrive at a very different conclusion... Read more.

Justice in Chad

Hissène Habré’s rule over Chad (1982–1990) was marked by allegations of systematic torture and crimes against humanity. Habré claims he was not aware of violations committed by the Documentation and Security Directorate, the state security force that pursued political opponents and operated prisons. We prove otherwise, in court... Read more.

Inaccurate statistics can damage the credibility of human rights claims—that’s why statistics about human rights violations must be as scientifically accurate as possible.

Read about our Core Concepts

Partners We Have Worked With

Who we are

Megan Price, PhD

Executive Director
Designs strategies and methods for statistical analysis of human rights data for projects in a variety of locations including Guatemala, Colombia, and Syria.

Patrick Ball, PhD

Director of Research
More than twenty years of quantitative analysis for truth commissions, non-governmental organizations, international criminal tribunals, and United Nations missions.

Tarak Shah

Data Scientist
As HRDAG's data scientist, Tarak cleans, processes and builds models from data in order to understand evidence of human rights abuses.

Suzanne Nathans

Operations Coordinator
Over 20 years of experience in non-profit administration. The operations hub for HRDAG, supporting Megan and the rest of the team from the San Francisco office.

Maria Gargiulo

Maria joined HRDAG as a statistician in 2020, and interned with the organization in 2018.
Kristin Yawitz, HRDAG

Kristen Yawitz

Foundation Relations and Strategy Lead
Kristen helps to refine HRDAG's fundraising, communications and strategy.

HRDAG team members present talks around the world to communities who want to better understand the power of data analysis to defend human rights.

View all talks

Patrick Ball | Keynote: Understanding Mass Violence with Data and Statistics (24:21)

Our work has been used by truth commissions, international criminal tribunals, and non-governmental human rights organizations. We have worked with partners on projects on five continents.


Get our newsletter