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Catherine Crump

@catherinecrump.bsky.social
541 followers 297 following 118 posts

Constitutional lawyer | Berkeley Law prof

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Reposted by Catherine Crump
Tracy Rosenberg @twrling.bsky.social · 01/09/2026
CA Governor and Legislature bury first probable cause warrant requirement for *some* #ALPR data and double down on #Flock and mass #surveillance as people across the state and country reject it. www.gov.ca.gov/2026/09/01/1...
gov.ca.gov
15,000+ arrests. 7,000+ stolen vehicles recovered. Crime Suppression Teams deliver results across California | Governor of California
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Catherine Crump @catherinecrump.bsky.social · 01/09/2026
I have an op-ed in today's LA Times: Congress's failure to regulate Flock and other license plate readers has fueled the vigilantes now taking down these cameras themselves. www.latimes.com/opinion/stor...
latimes.com
Contributor: Of course Flock cameras are being attacked. Congress has failed to regulate them
If Congress doesn’t act, privacy vigilantes will keep sawing down license plate readers — and they’ll have some justification to say they had no other option.
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Reposted by Catherine Crump
UC Berkeley Law @ucberkeleylaw.bsky.social · 29/08/2026
“A Texas Sheriff’s Office used it to search for a woman who had had an abortion, and federal agents proposed using it outside gun shows,” says Professor @catherinecrump.bsky.social to @arstechnica.com: bit.ly/4ytw7fl
bit.ly
Cities terminate Flock contracts at record pace in August
Cancellations have accelerated.
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Catherine Crump @catherinecrump.bsky.social · 21/08/2026
The UC Berkeley Academic Senate task force on free speech, academic freedom & campus climate released its report . I was glad to serve with faculty members across campus.
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Catherine Crump @catherinecrump.bsky.social · 29/06/2026
The Supreme Court just ruled your phone's location history is protected by the Fourth Amendment. Police generally need a warrant to obtain it. This is a sweepingly privacy protective ruling. I break down Chatrie v. United States.
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Catherine Crump @catherinecrump.bsky.social · 03/06/2026
What's the right way to rename The Kennedy Center? I explain in my latest Civil Liberties in 60 Seconds.
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Catherine Crump @catherinecrump.bsky.social · 29/05/2026
Can the government put someone to death after a judge blocks their lawyers from fully challenging racial bias in jury selection? The Supreme Court just said no in a 5-4 decision (Pitchford v. Cain). I break it down in my latest Civil Liberties in 60 Seconds.
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Catherine Crump @catherinecrump.bsky.social · 27/05/2026
Is it legal for the government to punish you for criticizing Charlie Kirk? The First Amendment says absolutely not.
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Catherine Crump @catherinecrump.bsky.social · 22/05/2026
The FBI is requesting bids for a nationwide car-tracking dragnet. FBI access to this data with no accountability and little oversight would be bad under any administration. But it's particularly problematic under this one, all the more so given that Kash Patel currently sits atop the FBI.
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Catherine Crump @catherinecrump.bsky.social · 15/05/2026
Can the Trump Administration exclude or remove people from the country because they work in content moderation? Breaking it down in Civil Liberties in 60 Seconds.
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Catherine Crump @catherinecrump.bsky.social · 13/05/2026
What do you get when two DOGE guys use ChatGPT to decide which federal grants to terminate? A constitutional violation, according to one federal judge. I break it down on my latest Civil Liberties in 60 Seconds.
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Catherine Crump @catherinecrump.bsky.social · 08/05/2026
Universities love celebrating activists of the past—but they get nervous when we praise the ones of today. My take on Prof. Derek Peterson's controversial graduation speech at Michigan.
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Catherine Crump @catherinecrump.bsky.social · 29/04/2026
Your phone is a tracking device. But is it legal for police to search for all cell phones near a crime scene? Breaking down geofence warrants and the fight for digital privacy in 60 seconds.
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Catherine Crump @catherinecrump.bsky.social · 24/04/2026
Is the White House ballroom a national security issue? The Trump Administration is trying to turn a legal shield into a loophole, invoking national security for everything from the ballroom to wind farms to offshore drilling.
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Catherine Crump @catherinecrump.bsky.social · 22/04/2026
Who’s a bigger threat to your privacy: the government tracking your car, or the tech bro sitting next to you filming with smart glasses? I testified before the California State Senate on two bills to address privacy risks of surveillance tech. Here's a short video about it.
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Catherine Crump @catherinecrump.bsky.social · 15/04/2026
Will immigrants file taxes this year? After Trump's IRS shared taxpayer data with ICE, courts stepped in to block it. But ICE has violated court orders repeatedly. My latest Civil Liberties in 60 Seconds.
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Catherine Crump @catherinecrump.bsky.social · 10/04/2026
The Trump Administration wants an anything goes approach to AI. California isn’t having it. My latest for Civil Liberties in 60 Seconds.
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Catherine Crump @catherinecrump.bsky.social · 08/04/2026
President Trump keeps losing First Amendment cases due to viewpoint discrimination, which is pretty remarkable
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Catherine Crump @catherinecrump.bsky.social · 03/04/2026
"Very quirky." That’s how Chief Justice Roberts described a key party of the government’s argument to end birthright citizenship this week. I break down the high-stakes arguments in Trump v. Barbara—in today's Civil Liberties in 60 Seconds
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Catherine Crump @catherinecrump.bsky.social · 01/04/2026
Does being born on US soil automatically make you an American? Today, SCOTUS hears a case that could dismantle over a century of precedent. From the historic Wong Kim Ark ruling to today, I break down what’s at stake.
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Catherine Crump @catherinecrump.bsky.social · 27/03/2026
Meta glasses look like standard frames—until someone turns them into secret spy gear. I went to the CA State Senate to testify on SB 1130. If you can’t tamper with a smoke detector, you shouldn’t be allowed to disable a camera’s safety light.
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Catherine Crump @catherinecrump.bsky.social · 25/03/2026
The Supreme Court said the government needs a warrant to track your cell phone's historical location. So how are federal agencies getting around it? They’re using your tax dollars to just buy it from private data brokers instead. www.youtube.com/watch?v=wgea...
youtube.com
Your apps are selling your location to the government #shorts #civilliberties #ice #catherinecrump
YouTube video by Civil Liberties In 60 Seconds
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Catherine Crump @catherinecrump.bsky.social · 18/03/2026
When a first grader’s drawing ends up in federal court, who really wins? (Spoiler: No one). Check out the latest Civil Liberties in 60 Seconds for the breakdown of a case that’s testing the limits of free speech in schools.
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Catherine Crump @catherinecrump.bsky.social · 12/03/2026
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. ⚖️🏛️
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Catherine Crump @catherinecrump.bsky.social · 09/03/2026
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! ⬇️
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Catherine Crump @catherinecrump.bsky.social · 02/03/2026
Can the Trump Administration force Anthropic to let the military use its products however it likes? My latest for Civil Liberties in 60 seconds.
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Reposted by Catherine Crump
Jameel Jaffer @jameeljaffer.bsky.social · 24/02/2026
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...
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Catherine Crump @catherinecrump.bsky.social · 23/02/2026
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
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Catherine Crump @catherinecrump.bsky.social · 18/02/2026
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)
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Catherine Crump @catherinecrump.bsky.social · 09/02/2026
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
Professor Catherine Crump sitting at desk, official photo of Rep. Jamie Raskin displayed alongside
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Catherine Crump @catherinecrump.bsky.social · 02/02/2026
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...
youtube.com
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.
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Catherine Crump @catherinecrump.bsky.social · 29/01/2026
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...
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Catherine Crump @catherinecrump.bsky.social · 26/01/2026
1/2 Contrary to recent rhetoric from DHS, the law is clear: ICE agents generally cannot enter a home without a judicial warrant.
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Catherine Crump @catherinecrump.bsky.social · 25/01/2026
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.
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Reposted by Catherine Crump
Jameel Jaffer @jameeljaffer.bsky.social · 23/01/2026
Laird v Tatum was a terrible decision that continues to haunt our democracy half a century later.
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Catherine Crump @catherinecrump.bsky.social · 21/01/2026
A new frontier in unchecked surveillance: retailers are turning their facial recognition systems into tools for law enforcement to spot persons of interest.
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Reposted by Catherine Crump
Jameel Jaffer @jameeljaffer.bsky.social · 17/01/2026
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.
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Reposted by Catherine Crump
Jameel Jaffer @jameeljaffer.bsky.social · 20/01/2026
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...
paulwells.substack.com
The Carney doctrine
Open comment thread on the PM's Davos speech
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Catherine Crump @catherinecrump.bsky.social · 14/01/2026
I worked on the Biden Administration's push to ban federal agents from using chokeholds. Federal policy is clear: unless deadly force is authorized, chokeholds are off limits.
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Catherine Crump @catherinecrump.bsky.social · 12/01/2026
“We will not obstruct ... We are not escalating.” Despite these mantras, the friction between ICE watchers and federal agents is at a breaking point. Given the tragedy in Minneapolis, I am re-sharing this explainer on the right to record law enforcement www.youtube.com/shorts/x3fB_...
youtube.com
Do you have a First Amendment right to record ICE raids?
YouTube video by UC Berkeley School of Law
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Catherine Crump @catherinecrump.bsky.social · 19/12/2025
How does the UC Berkeley Law Samuelson Clinic advance the public interest in an era of rapid technological change? By going deep.
Samuelson Clinic students wearing their clinic t-shirts sit on step of Berkeley Law School
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Catherine Crump @catherinecrump.bsky.social · 18/12/2025
Yet another example of troubling third party surveillance networks that circumvent the spirit if not always the letter of restrictions on police data collection. www.npr.org/2025/12/16/n...
npr.org
Live cameras are tracking faces in New Orleans. Who should control them?
A private non-profit operates over 200 cameras with live facial recognition in New Orleans. The system raises questions about privacy, legal authority and who should control surveillance technology.
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Catherine Crump @catherinecrump.bsky.social · 17/12/2025
In court tomorrow at 10am: a hearing on the Department of Energy's termination of UC researchers' grants. Listen here: cand.uscourts.gov/judges/rfl/l...
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Catherine Crump @catherinecrump.bsky.social · 12/12/2025
This is a must-read for anyone paying attention to the Trump Administration’s assault on higher ed. A new investigation reveals how Trump officials pressured DOJ career lawyers to manufacture a case against UCLA despite a glaring lack of evidence. www.propublica.org/article/ucla...
propublica.org
Trump’s DOJ Pressured Lawyers to “Find” Evidence that UCLA Had Illegally Tolerated Antisemitism
An investigation by ProPublica and The Chronicle of Higher Education reveals how the U.S. government ignored due process to gin up its attack on the University of California.
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Catherine Crump @catherinecrump.bsky.social · 11/12/2025
Not defending what happened here. But it compelled me to read the UC policy, which is alarmingly vague and broad. It prohibits "indoctrination" and requires staying "aloof from politics." Pretty tough to know how to discuss law, politics, economics, etc www.berkeleyside.org/2025/12/09/p...
berkeleyside.org
UC Berkeley suspends lecturer for sharing pro-Palestinian views in his classroom
Peyrin Kao said he believes UC Berkeley is capitulating to the demands of the Trump administration. Cal said it was responding to student complaints.
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Cyrus Farivar @cfarivar.bsky.social · 10/12/2025
Now that I’m back on the job market, I’m open to freelance work! So I’m partying like it’s the 2010s, baby, when Twitter was on the rise! (Here’s my first byline of the 2020s with @arstechnica.com , which was my professional home from 2012 - 2019.) bsky.app/profile/arst...
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Catherine Crump @catherinecrump.bsky.social · 10/12/2025
Good to see civil liberties groups suing to force release of the boat strikes memo. The public deserves clear answers regarding the government's legal rationale for the boat strikes, and this information should be released now, while the debate is live. www.aclu.org/cases/foia-c...
aclu.org
FOIA Case Seeking the Trump Administration’s Legal Justification for Deadly Boat Strikes | American Civil Liberties Union
The Department of Justice’s Office of Legal Counsel (“OLC”) authored a legal opinion that reportedly claims to justify the Trump administration’s illegal lethal strikes on civilians in boats in the Ca...
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Reposted by Catherine Crump
UC Berkeley Law @ucberkeleylaw.bsky.social · 05/12/2025
Do noncitizens have the same rights as citizens? This special episode of 𝘐𝘵'𝘴 𝘵𝘩𝘦 𝘓𝘢𝘸 features Professor Catherine Crump, Robert Glushko Clinical Professor of Practice in Technology Law. youtube.com/shorts/xMQeU-FIJHQ?feat… #ItstheLaw #BerkeleyLaw @catherinecrump.bsky.social
youtube.com
Do noncitizens have the same free speech rights as citizens?
YouTube video by UC Berkeley School of Law
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Catherine Crump @catherinecrump.bsky.social · 05/12/2025
Good for them. The pattern of who this administration dismisses is unmistakable.
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Catherine Crump @catherinecrump.bsky.social · 05/12/2025
Things that seem increasingly necessary for folks organizing ice watch groups…and other constitutionally protected activity our rogue administration did not like
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