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120 Mich. L. Rev. 265 (2021-2022)
Social Norms in Fourth Amendment Law

handle is hein.journals/mlr120 and id is 281 raw text is: SOCIAL NORMS IN FOURTH AMENDMENT LAW
Matthew Tokson* & Ari Ezra Waldman**
Courts often look to existing social norms to resolve difficult questions in
Fourth Amendment law. In theory, these norms can provide an objective basis
for courts' constitutional decisions, grounding Fourth Amendment law in fa-
miliar societal attitudes and beliefs. In reality, however, social norms can shift
rapidly, are constantly being contested, and frequently reflect outmoded and
discriminatory concepts. This Article draws on contemporary sociological lit-
eratures on norms and technology to reveal how courts' reliance on norms
leads to several identifiable errors in Fourth Amendment jurisprudence.
Courts assessing social norms generally adopt what we call the closure princi-
ple, or the idea that social norms can be permanently settled. Meanwhile,
courts confronting new technologies often adopt the nonintervention principle,
or the idea that courts should refrain from addressing the Fourth Amendment
implications of new surveillance practices until the relevant social norms be-
come clear. Both approaches are flawed, and they have substantial negative
effects for equality and privacy. By adopting norms perceived as closed, courts
may embed antiquated norms in Fourth Amendment law-norms that often
involve discrimination on the basis of race, gender, or class. By declining to
intervene when norms are undeveloped, courts cede power over norm creation
to companies that design new technologies based on data-extractive business
models. Further, judicial norm reliance and nonintervention facilitate surveil-
lance creep, the extension of familiar data-gathering infrastructures to new
types of surveillance.
This Article provides, for the first time, a full, critical account of the role of
social norms in Fourth Amendment law. It details and challenges courts' reli-
ance on social norms in virtually every aspect of Fourth Amendment jurispru-
dence. And it explores potential new directions for Fourth Amendment law,
including novel doctrinal paradigms, different conceptions of stare decisis in
the Fourth Amendment context, and alternative institutional regimes for reg-
ulating government surveillance.
*   Professor of Law, University of Utah S.J. Quinney College of Law.
**   Professor of Law and Computer Science, Northeastern University School of Law and
Khoury College of Computer Sciences. The authors share credit and responsibility for this Arti-
cle equally. Our thanks to Anita Allen, Shima Baradaran Baughman, Bennett Capers, Danielle
Keats Citron, Julie E. Cohen, David Gray, Cathy Hwang, Matthew Kugler, Daniel Medwed, Ed
Purcell, Jeff Schwartz, and Patricia Williams. Special thanks to Luis Felipe Escobedo, Margaret
Foster, and George LaBonty for excellent research assistance.

doi: 10.36644/mlr. 120.2.social

265

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