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Catherine Crump

@catherinecrump

Clinical Professor @BerkeleyLaw focused on the impact of emerging technologies on civil liberties

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20.11.2024
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Latest posts by Catherine Crump @catherinecrump

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Can the government use its power to punish law firms for the viewpoints they represent? In my latest Civil Liberties in 60 Seconds, I examine the DOJ’s sudden reversal on its appeal defending executive orders that blacklisted major firms. Watch to learn why this matters. ⚖️🏛️

12.03.2026 16:07 👍 0 🔁 2 💬 0 📌 0
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Can the military cut a retired veteran's pension for political speech?

The Pentagon tried to punish Senator Mark Kelly for a video, but a federal judge blocked it, ruling his speech is unquestionably protected. Now, the appeals court will hear the case in May.

Watch my 60-second breakdown! ⬇️

09.03.2026 16:47 👍 1 🔁 2 💬 0 📌 0
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Can the Trump Administration force Anthropic to let the military use its products however it likes? My latest for Civil Liberties in 60 seconds.

02.03.2026 15:08 👍 2 🔁 2 💬 0 📌 0
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Really excellent brief, filed earlier today, from First Amendment scholars in support of @knightcolumbia.org's motion for public access to Jack Smith's Mar-a-Lago report. Thanks to @mfia-clinic.bsky.social for putting it together. knightcolumbia.org/documents/ak...

24.02.2026 20:42 👍 65 🔁 22 💬 2 📌 0
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Protesting is a right—and so is your digital privacy. 🦋

Just because the police can take your cellphone if you get arrested mean they have an all-access pass to your life. ⚖️

The law draws a line in the sand at your data. #DigitalPrivacy #FirstAmendment #ProtestRights

23.02.2026 18:48 👍 8 🔁 6 💬 0 📌 0
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Check the Monitor: Parole & Probation Technologies in Review

Read the full report here: www.law.berkeley.edu/case-projec... (6/6)

18.02.2026 21:26 👍 1 🔁 0 💬 0 📌 0

If the state can revoke community supervision based on technological assertions, it must ensure, at a minimum, that the technology is accurate. Otherwise, individuals will lose their freedom despite having done nothing wrong. (5/6)

18.02.2026 21:26 👍 0 🔁 0 💬 1 📌 0

This evidence then forms the basis for revocation proceedings—but these proceedings are not designed to reveal problems with complex technological evidence. (4/6)

18.02.2026 21:26 👍 0 🔁 0 💬 1 📌 0

With 3.7M people on supervision, the stakes are high. Jurisdictions across the country use technology to monitor individuals on community supervision and to allege that they violated their conditions of release. (3/6)

18.02.2026 21:26 👍 0 🔁 0 💬 1 📌 0

A special shout-out to the student authors for their rigorous research and advocacy:
• Abby Smith ’26
• Corinne Johnston ’26
• Katarina van Alebeek ’26
• Niyati Narang ’26
(2/6)

18.02.2026 21:26 👍 0 🔁 0 💬 1 📌 0

Huge congratulations to Julie DeVries and the talented students of the Samuelson Law, Tech & Public Policy Clinic at @BerkeleyLaw on their vital new report: “Check the Monitor: Parole and Probation Technologies in Review.” 🧵 (1/6)

18.02.2026 21:26 👍 0 🔁 0 💬 1 📌 1
Professor Catherine Crump sitting at desk, official photo of Rep. Jamie Raskin displayed alongside

Professor Catherine Crump sitting at desk, official photo of Rep. Jamie Raskin displayed alongside

Can DOJ coerce Apple into deleting apps? Rep. Jamie Raskin is investigating claims DOJ strong-armed Big Tech into killing ICE-tracking apps. The 1st amendment bans DOJ from pressuring companies to suppress speech

Watch here: www.youtube.com/shorts/zjLZu...

#FirstAmendment #CivilLiberties #ICE

09.02.2026 19:08 👍 9 🔁 6 💬 0 📌 1
Why can ICE use high tech surveillance on peaceful protestors? #shorts #knowyourrights #ice
Why can ICE use high tech surveillance on peaceful protestors? #shorts #knowyourrights #ice Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube.

Are privacy rights failing to keep pace with surveillance tech? In my latest video for Civil Liberties in 60 Seconds, how federal agencies like ICE use high tech surveillance to monitor peaceful protesters without a clear legal framework #ICE #TwinCities

www.youtube.com/shorts/EqA7...

02.02.2026 16:07 👍 2 🔁 1 💬 0 📌 0

Social media bans for kids are a huge trend--yet bad policy and likely unconstitutional. These laws don't just affect minors. They force adults into cumbersome age verification. I broke down the legal and social fallout in my new piece for @TheHill thehill.com/opinion/tec...

29.01.2026 17:13 👍 0 🔁 1 💬 0 📌 0
Can ICE agents enter homes without a judicial warrant?
Can ICE agents enter homes without a judicial warrant? YouTube video by Civil Liberties In 60 Seconds

2/2 I’ve recorded a quick breakdown of the law and why this distinction matters for your constitutional rights. Watch it here: www.youtube.com/shorts/TqSNw...

26.01.2026 16:45 👍 8 🔁 1 💬 0 📌 1

1/2 Contrary to recent rhetoric from DHS, the law is clear: ICE agents generally cannot enter a home without a judicial warrant.

26.01.2026 16:45 👍 4 🔁 2 💬 1 📌 0

www.washingtonpost.com/immigration...

25.01.2026 21:34 👍 0 🔁 0 💬 0 📌 0
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Frustrating that in an era where 80 % of major law enforcement agencies have body-worn cameras, ICE has so few of them. President Biden signed an Executive Order requiring body-worn cameras---which President Trump repealed on his first day in office.

25.01.2026 21:34 👍 1 🔁 0 💬 1 📌 0

Laird v Tatum was a terrible decision that continues to haunt our democracy half a century later.

23.01.2026 21:39 👍 27 🔁 11 💬 1 📌 1

I submitted a FOIA request for records the DHS OGC position. Granted, none of us are expecting scrupulous compliance with the public records laws from this administration.

22.01.2026 16:59 👍 1 🔁 0 💬 1 📌 0

Yes, agreed. Even though there are some block quotes, it's hard to know what to make of it overall

22.01.2026 00:40 👍 0 🔁 0 💬 1 📌 0

The New York City law requiring retailers to disclose their use of facial recognition technology is a minimal first step that every jurisdiction should adopt.

If you are going to surveil us, the very least you can do is tell us.

21.01.2026 15:30 👍 0 🔁 0 💬 0 📌 0

There is no way the current federal government will address this, even though it is clearly a national issue.

That means we need localities and states to step up. We cannot wait for Congress to plug the leak.

21.01.2026 15:30 👍 0 🔁 0 💬 1 📌 0

If the government doesn't search you—but simply asks Target or Wegmans for the data they already have—it's unlikely the constitution protects you.

21.01.2026 15:30 👍 0 🔁 0 💬 1 📌 0
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Retailers Secretively Using Face Recognition to Spot “Persons of Interest” — Including For the Government | ACLU Are Wegmans and other retailers participating in the Trump war on immigrants?

www.aclu.org/news/privac...
This exposes a gaping hole in the Fourth Amendment: it has almost nothing to say about the government collecting "third-party" stores of data.

21.01.2026 15:30 👍 0 🔁 0 💬 1 📌 0

A new frontier in unchecked surveillance: retailers are turning their facial recognition systems into tools for law enforcement to spot persons of interest.

21.01.2026 15:30 👍 0 🔁 1 💬 1 📌 0

If you're wondering what Jeff Bezos, the owner of the Washington Post, has said publicly in response to the FBI's raid of a Washington Post reporter's home last week, the answer is nothing.

17.01.2026 22:17 👍 157 🔁 53 💬 3 📌 4
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The Carney doctrine Open comment thread on the PM's Davos speech

Mark Carney's remarks at Davos are worth reading in their entirety. This is the kind of leadership the world needs. paulwells.substack.com/p/the-carney...

20.01.2026 19:02 👍 133 🔁 41 💬 12 📌 13

Rules on paper mean nothing without leadership at the top. Policy doesn't amount to much when the President creates an environment of impunity.

14.01.2026 15:15 👍 1 🔁 1 💬 0 📌 0
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We Found More Than 40 Cases of Immigration Agents Using Banned Chokeholds and Other Moves That Can Cut Off Breathing Civilians have had apparent seizures. One had his eyes roll back. Another had ribs broken. “I felt like I was going to pass out and die,” said a 16-year-old citizen put in a chokehold. The government won’t say if any agents have been punished.

A new ProPublica investigation documents immigration agents using these exact banned chokeholds. www.propublica.org/article/vid...

14.01.2026 15:15 👍 0 🔁 0 💬 1 📌 0