Menlo Park’s gang database included over 100 people listed as “Taliban” members, 93% of whom were Black. One of them is using California's Racial Justice Act to fight back. www.rjaction.org/post/straigh...

In 377 HIV clinics in Malawi, statistical sampling is key to assessing the data quality on patient treatment cards. Done right, sampling can be a powerful tool for catching errors. statmodeling.stat.columbia.edu/2026/02/24/s...

What happens when the patterns we’ve studied in other countries start showing up closer to home? HRDAG’s 2025 review reflects on how the rise of tyranny in the United States is changing our work and our threat model. Read it here: hrdag.org/2026/03/03/h...

Where do police officers go after leaving their roles in the wake of killing someone or sexual misconduct? You can find out with the National Police Index—the newly updated data tool from @invisible.institute + @hrdag.org + Machine Learning Justice Lab + Innocence & Justice Louisiana.

A new paper by @sayash.bsky.social and @randomwalker.bsky.social examines what “reliability” means in an AI context. They propose consistency, robustness, calibration, and safety, and they define these in operationally useful ways. A worthy read! www.normaltech.ai/p/new-paper-...

"What is the role of transparency in advancing police accountability and justice?" asks trina reynolds-tyler of @invisible.institute moderating HRDAG's event in Oakland, CA exploring how we use data about police misconduct to work toward justice. www.youtube.com/watch?v=YGaE...

Check out Beneath the Surface, a data science project that investigates the intersections of gender-based violence and policing, created by @invisible.institute with support from HRDAG. www.btsurface.com

Thank you for your leadership @macfound.org. Human rights should be at the heart of the AI discourse. www.macfound.org/press/press-...

We’re transforming mountains of unstructured police and human rights data into rigorous statistical evidence—demonstrating how data science can support accountability. hrdag.org/ml/

AI is becoming ubiquitous, but what about the underlying datasets being used for training that AI? Here's what statisticians mean when they talk about "biased data" and why it matters. hrdag.org/2026/02/11/y...

Data science brings a rigor and analytical depth that can transform human rights practice. www.openglobalrights.org/why-data-sci...

Random sampling, bias, population parameters—here's a bootcamp on statistics so you can be armed with knowledge when you encounter data in the wild. hrdag.substack.com/p/yes-your-d...

Congratulations to Ayyub Ibrahim, recipient of the Electronic Access award from the Society of Professional Journalists, Northern California! spjnorcal.org/2026/02/14/s...

We are grateful that @prisonpolicy.org spotlighted our work in their recent round-up of data projects tracking police abuses. www.prisonpolicy.org/blog/2026/01...

Our most recent newsletter unpacks what statisticians mean when they talk about "bias," including: ✅ Disclosure bias ✅ Event size bias ✅ Selection bias Check it out here: hrdag.substack.com/p/yes-your-d...

Check out HRDAG's presentations to learn how statistics and rigorous data gathering can be used to reveal the truth of state violence. hrdag.org/talks-discus...

👉 Read why bias in data is nearly everywhere (and what it means for truth in data): hrdag.substack.com/p/yes-your-d...

Understanding the relationship between the data we have and the world we are researching is at the heart of statistics. hrdag.substack.com/p/yes-your-d...

The need for law enforcement transparency, oversight, and accountability has never been clearer, writes @prisonpolicy.org www.prisonpolicy.org/blog/2026/01...

Among the many ways HRDAG contributed in post-conflict Guatemala: we trained Guatemalan NGOs in methods for securing their data using open source information management tools. hrdag.org/guatemala/

"These documents are available theoretically. But there's a wide gap between that and having them in your hand." - Galen Mancino, on searching out documents about police misconduct. Watch our full event in Oakland, CA: www.youtube.com/watch?v=YGaE...

What does justice look like for communities struggling with police violence? At a recent event in Oakland, CA, activists, scholars, and those who lost loved ones to police violence shared their stories. hrdag.org/2026/02/03/w...

"What is the role of transparency in advancing police accountability and justice?" asks trina reynolds-tyler of @invisible.institute moderating HRDAG's event in Oakland, CA exploring how we use data about police misconduct to work toward justice. www.youtube.com/watch?v=YGaE...

🗣️ Public participation plays a critical role in AI research. Watch HRDAG's executive director Megan Price and her co-author @natematias.bsky.social discuss their recent research paper: youtube.com/watch?si=Orbr5JFbYcEzjzFF&t=1187&v=u0qW7ny58hU&feature=youtu.be

"As soon as the law passed, there were news outlets reporting about how, for example, Fremont Police Department was shredding their documents because they didn't want to disclose them." - Galen Mancino. www.youtube.com/watch?v=YGaE...

"There is no such thing as justice when we're talking about police terror and the stealing of our community members' lives." - Cat Brooks, at HRDAG's event on data and police accountability. Watch our full event in Oakland, CA: www.youtube.com/watch?v=YGaE...

HRDAG hosted a data retreat in our office last week. We're grateful to be part of a community of statisticians and scientists using data to advance human rights.

This work is better with friends. Here are some moments from our recent data retreat with HRDAG scientists and our partners at @datacivica.bsky.social Kilómetro 0, & @invisible.institute

ICYMI: HRDAG hosted a conversation with the human rights community about recent threats to science and civil society in the United States. Watch here: www.youtube.com/watch?v=3UHk...

Even with multiple sources, the story isn’t complete. HRDAG uses techniques like multiple systems estimation to infer the unobserved from the observed, recognizing that some victims may never be seen in the data. hrdag.org/2013/03/11/m...

More data doesn’t automatically mean more knowledge. That's because raw data is inherently biased and often misrepresents reality. Statistical models help reveal those biases and uncover the truth. www.youtube.com/watch?v=z7U9...

Data can be a tool for justice. Help HRDAG in our efforts to bring accountability and knowledge to human rights violations. hrdag.networkforgood.com

We are excited to co-sponsor this event on police accountability in Oakland on January 22 with @ucbids.bsky.social, Anti-Police Terror Project (APTP), Community Law Enforcement Accountability Network, & the National Police Index. hrdag.org/2026/01/13/t...

HRDAG stands with the human rights community in condemning the recent sanctions imposed against the International Criminal Court by the U.S. government. hrdag.org/2026/01/05/t...

In Oakland? Come learn about the Police Records Access Project, what the new statewide database of police misconduct and use-of-force records contains, and how it’s related to a new law creating the possibility to decertify officers with histories of abuse. actionnetwork.org/events/the-w...

That's why we always say : ☑️ collect the data in real time ☑️ back it up (ideally in another jurisdiction) ☑️ encrypt it Data collected today is the backbone of tomorrow's prosecutions for human rights violations.

HRDAG stands with the human rights community in condemning the recent sanctions imposed against the International Criminal Court by the U.S. government. hrdag.org/2026/01/05/t...

Come learn how public data, journalism & community organizing are reshaping police accountability. 📍 Oakland — Jan 22, 6–7:30 PM Register now! 👉 actionnetwork.org/events/the-w...

Data about human rights violations can be used to prove command responsibility. HRDAG can and has used this type of data to prove that those at the top of government are knowingly responsible for the agents carrying out their commands.

Data created during times of human rights violations can be used to prove command responsibility: that those at the very top are responsible for the actions of the agents carrying out their orders. hrdag.substack.com/p/dictatorsh...

Data created during times of human rights violations can be used to prove command responsibility: that those at the very top are responsible for the actions of the agents carrying out their orders. hrdag.substack.com/p/dictatorsh...

Those in power must never undermine a court out of fear that it may turn its attention toward them. hrdag.org/2026/01/05/t...

Do you use methods of participatory science to study AI? Are you curious about doing so? Megan Price of @hrdag.org & I have been delighted by the enthusiasm for our recent paper and the interest in community-building, so we're holding a meetup Mon Jan 12 @ noon ET! cornell.zoom.us/meeting/regi...

We don’t work alone. HRDAG partners with truth commissions, courts, and local advocates to build evidence together. Justice is a collective process and data is one of our shared tools.

Equality before the law must apply to everyone, including the President of the United States. hrdag.org/2026/01/05/t...

Equality before the law must apply to everyone, including the President of the United States. hrdag.org/2026/01/05/t...

Many scientists think involving humans in AI science is the ethical choice. But our research shows that human participation also improves precision and reliability in the science. hrdag.org/2025/11/25/t...

The ICC is a powerful tool against impunity. That's why HRDAG adds our voice to the community of human rights organizations demanding that the Trump Administration respect international law and the ICC’s essential independence. hrdag.org/2026/01/05/t...

Behind every data point is a human story. Our work exists to honor those stories with scientific rigor and meticulous research.

As the year closes, we reaffirm our commitment to: • Scientific rigor • Transparency • Human rights You can support our work with a donation today: hrdag.networkforgood.com