Advertisement · 728 × 90

Posts by Matthew Tokson

Post image

Chatrie’s reply brief makes a crucial point here. The government argues that it can track anyone’s location at any time in the past, for no reason, so long as it does not collect more than 7 days’ worth of total data. I argue against that here: papers.ssrn.com/sol3/papers....

1 day ago 1 0 0 0

the penne opticon

1 day ago 3666 864 1 35

Interesting piece arguing that data brokers who sell to government agencies are state actors. I'd just add that the government entities who purchase data from brokers are (obviously) also state actors to whom the Constitution applies.

3 days ago 3 2 0 0

Proud to join @daniel-solove.bsky.social @pamelasamuelson.bsky.social @hartzog.bsky.social @ariezra.bsky.social @aliciasn.bsky.social @thomaskadri.bsky.social Shoshana Zuboff and many others in signing on to this important brief.‬

6 days ago 3 0 0 0
Post image

We filed an amicus brief in Chatrie v. US, which will argued be at SCOTUS in two weeks. Check it out here: papers.ssrn.com/sol3/papers....

6 days ago 3 2 1 0

SCOTUS might punt on the search question in Chatrie. But my prediction is they'll find a search here, and they'll split over the rationale, with 3-4 Justices finding a Carpenter search and 1-3 finding a quasi-property search.

1 week ago 0 0 0 0
Post image

Just received @profferguson.bsky.social's new book, I'm excited to read it!

You can get it here: nyupress.org/978147983829...

1 week ago 4 3 0 0
Advertisement
Post image

Forgot to post this: Our article on the Good Faith Exception is out in final form in the Georgetown Law Journal!
www.law.georgetown.edu/georgetown-l...

1 week ago 4 1 0 0
Post image

Forgot to post this: Our article on the Good Faith Exception is out in final form in the Georgetown Law Journal!
www.law.georgetown.edu/georgetown-l...

1 week ago 4 1 0 0
Post image

Now on SSRN, I review Orin Kerr’s new book, The Digital Fourth Amendment, for the Michigan Law Review.
papers.ssrn.com/sol3/papers....

2 weeks ago 7 0 0 0
Retrospective Surveillance Retrospective surveillance enables government officials to retrace a person’s past activities and communications in remarkable detail. Private companies and gov

Can the government use big data to go back in time to examine your movements? My new essay, forthcoming in Florida Law Review, explains how to analyze retrospective surveillance, with a focus on geofences and tower dumps.
papers.ssrn.com/sol3/papers....

3 weeks ago 1 1 0 0
Retrospective Surveillance Retrospective surveillance enables government officials to retrace a person’s past activities and communications in remarkable detail. Private companies and gov

Can the government use big data to go back in time to examine your movements? My new essay, forthcoming in Florida Law Review, explains how to analyze retrospective surveillance, with a focus on geofences and tower dumps.
papers.ssrn.com/sol3/papers....

3 weeks ago 1 1 0 0

The government's brief is here: www.supremecourt.gov/DocketPDF/25...

3 weeks ago 0 0 0 0
Retrospective Surveillance Retrospective surveillance enables government officials to retrace a person’s past activities and communications in remarkable detail. Private companies and gov

The government's brief in Chatrie leans heavily on the idea that 2 hours of geofence location tracking is less invasive than 7 days of cellphone tracking. And it is. But with retrospective surveillance, people are subject to surveillance for years, not just 2 hours.
papers.ssrn.com/sol3/papers....

3 weeks ago 0 0 1 0
Advertisement

Amplifying what I call a pretty darn good, quick, concise, straightforward response.

Thanks, Matthew.

3 weeks ago 1 1 1 0

Also available here, direct from the publisher: global.oup.com/academic/pro...

3 weeks ago 1 0 0 1
Preview
The Digital Fourth Amendment: Privacy and Policing in Our Online World The Digital Fourth Amendment: Privacy and Policing in Our Online World [Kerr, Orin] on Amazon.com. *FREE* shipping on qualifying offers. The Digital Fourth Amendment: Privacy and Policing in Our Online World

Also - buy the book here: www.amazon.com/Digital-Four...

3 weeks ago 0 0 1 0

thank you @michlawreview.bsky.social

3 weeks ago 0 0 1 0
Fourth Amendment Anti-Theory <div> <p><span>Orin Kerr is America’s leading Fourth Amendment scholar. Yet despite his enormous influence and his nearly twenty-five years of being a law prof

I reviewed Orin Kerr’s new book, The Digital Fourth Amendment, for the Michigan Law Review: papers.ssrn.com/sol3/papers....

3 weeks ago 14 5 2 1

I agree with parts of the book and disagree with others, but wherever you land on these issues I recommend reading the book, which you can buy here: amazon.com/Digital-Fourth…

1 month ago 2 1 0 0
Post image

Thanks very much to @mtokson.bsky.social for his review of "The Digital Fourth Amendment," and the longer review of it forthcoming in the MLR book review issue.
www.lawfaremedia.org/article/four...

You can buy the book here: www.amazon.com/Digital-Four...

1 month ago 25 4 0 2

I have a book fund here and I just requested it be used to buy this - looking forward to reading!

1 month ago 3 1 1 0
Post image

Book launch day! “Your Data Will Be Used Against You: Policing in the Age of Self Surveillance” is out.

Bluesky friends, I would be so grateful if you would buy a copy. And if you can’t afford it, could you at least share this announcement. Thank you. #BookSky

politics-prose.com/search?q=You...

1 month ago 957 480 30 25
Retrospective Surveillance <div> <p>Retrospective surveillance enables government officials to retrace a person’s past activities and communications in remarkable detail. Private compani

I just posted a new essay, forthcoming in the Florida Law Review, on Retrospective Surveillance. It focuses on geofence searches and how to assess them, in anticipation of the upcoming huge Supreme Court case on geofences.
Check it out: papers.ssrn.com/sol3/papers....

1 month ago 16 7 0 0
Advertisement
Retrospective Surveillance <div> <p>Retrospective surveillance enables government officials to retrace a person’s past activities and communications in remarkable detail. Private compani

I just posted a new essay, forthcoming in the Florida Law Review, on Retrospective Surveillance. It focuses on geofence searches and how to assess them, in anticipation of the upcoming huge Supreme Court case on geofences.
Check it out: papers.ssrn.com/sol3/papers....

1 month ago 16 7 0 0

As the Pentagon and Anthropic clash over fully autonomous weapons and AI mass surveillance of Americans, it's a good time to think about how the law can address AI mass surveillance and AI use of force: papers.ssrn.com/sol3/papers....

1 month ago 4 1 0 1

As the Pentagon and Anthropic clash over fully autonomous weapons and AI mass surveillance of Americans, it's a good time to think about how the law can address AI mass surveillance and AI use of force: papers.ssrn.com/sol3/papers....

1 month ago 4 1 0 1

Congratulations Beau! Keep up the excellent work.

1 month ago 0 0 0 0
Preview
Leaked Email Suggests Ring Plans to Expand ‘Search Party’ Surveillance Beyond Dogs Ring's CEO told staff the feature is “first for finding dogs,” indicating a plan to expand.

Scoop: Ring's CEO told staff Search Party is not going to be just for dogs, according to a leaked email I obtained. Said it is "first for finding dogs" before suggesting it would be expanded to be used for crime:

www.404media.co/leaked-email...

2 months ago 2449 1113 123 321

The constitutionality of government purchases of private data is going to be very important if Ring's strategy is to privatize pervasive camera surveillance. Here's an article I wrote about it: papers.ssrn.com/sol3/papers....

2 months ago 1 0 1 0