Law Commons^™

Are Police Officers Bayesians? Police Updating In Investigative Stops, Jeffrey A. Fagan, Lila J.E. Nojima

Faculty Scholarship

Theories of rational behavior assume that actors make decisions where the benefits of their acts exceed their costs or losses. If those expected costs and benefits change over time, behavior will change accordingly as actors learn and internalize the parameters of success and failure. In the context of proactive policing, police stops that achieve any of several goals — constitutional compliance, stops that lead to “good” arrests or summonses, stops that lead to seizures of weapons, drugs, or other contraband, or stops that produce good will and citizen cooperation — should signal to officers the features of a stop that …

Privacy And Pandemics, Clarisa Long

Faculty Scholarship

The beginning of 2020 marked an unexpected turn for the world, the global pandemic of COVID-19 has affected every aspect of life. It has also created an unprecedented opportunity for governments to justify the expansion of their surveillance and collection of data. The foregoing essay, which was first published in Faculty Publications at Scholarship Archive of the Columbia Law School focuses on two types of data collection – governmental mass collection of nonanonymized location data and state-collected nonanonymized data on people's health and immunity status. Several countries have applied one or both practices and it is relevant to look into …

Reforming Institutions: The Judicial Function In Bankruptcy And Public Law Litigation, Kathleen G. Noonan, Jonathan C. Lipson, William H. Simon

Faculty Scholarship

Public law litigation (PLL) is among the most important and controversial types of dispute that courts face. These civil class actions seek to reform public agencies such as police departments, prison systems, and child welfare agencies that have failed to meet basic statutory or constitutional obligations. They are controversial because critics assume that judicial intervention is categorically undemocratic or beyond judicial expertise.

This Article reveals flaws in these criticisms by comparing the judicial function in PLL to that in corporate bankruptcy, where the value and legitimacy of judicial intervention are better understood and more accepted. Our comparison shows that judicial …

The End Of Intuition-Based High-Crime Areas, Ben Grunwald, Jeffrey A. Fagan

Faculty Scholarship

In 2000, the Supreme Court held in Illinois v. Wardlow that a suspect’s presence in a “high-crime area” is relevant in determining whether an officer has reasonable suspicion to conduct an investigative stop. Despite the importance of the decision, the Court provided no guidance about what that standard means, and over fifteen years later, we still have no idea how police officers understand and apply it in practice. This Article conducts the first empirical analysis of Wardlow by examining data on over two million investigative stops conducted by the New York Police Department from 2007 to 2012.

Our results suggest …

Our Criminal Laws, Our Constitution, Sarah Seo

Faculty Scholarship

This essay reviews three recently published books that further explore this insight in the twentieth century. At first glance, vagrancy laws, the free will problem, and criminal records may seem to share little in common. But each study illuminates how criminal laws have defined our nation by creating what historian Barbara Welke has termed "borders of belonging," a boundary that laws create between people who enjoy full citizenship and those who do not. After all, a conviction and imprisonment are acts of social and political exclusion. Even the policing of suspected offenders often reveals who does not completely belong.

The …

Following The Script: Narratives Of Suspicion In Terry Stops In Street Policing, Jeffery Fagan, Amanda Geller

Faculty Scholarship

Regulation of Terry stops of pedestrians by police requires articulation of the reasonable and individualized bases of suspicion that motivate their actions. Nearly five decades after Terry, courts have found it difficult to articulate the boundaries or parameters of reasonable suspicion. The behavior and appearances of individuals combine with the social and spatial contexts in which police observe them to create an algebra of suspicion. Police can proceed to approach and temporarily detain a person at a threshold of suspicion that courts have been unable and perhaps unwilling to articulate. The result has been sharp tensions within Fourth Amendment …

Beyond Law Enforcement: Camreta V. Greene, Child Protection Investigations, And The Need To Reform The Fourth Amendment Special Needs Doctrine, Joshua Gupta-Kagan

Faculty Scholarship

The Fourth Amendment “special needs” doctrine distinguishes between searches and seizures that serve the “normal need for law enforcement” and those that serve some other special need, excusing non-law-enforcement searches and seizures from the warrant and probable cause requirements. The United States Supreme Court has never justified drawing this bright line exclusively around law enforcement searches and seizures but not around those that threaten important noncriminal constitutional rights.

Child protection investigations illustrate the problem: millions of times each year, state child protection authorities search families' homes and seize children for interviews about alleged maltreatment. Only a minority of these investigations …

Randomization And The Fourth Amendment, Bernard Harcourt, Tracey L. Meares

Faculty Scholarship

Randomized checkpoint searches are generally taken to be the exact antithesis of reasonableness under the Fourth Amendment. In the eyes of most jurists checkpoint searches violate the central requirement of valid Fourth Amendment searches – namely, individualized suspicion. We disagree. In this Article, we contend that randomized searches should serve as the very lodestar of a reasonable search. The notion of "individualized" suspicion is misleading; most suspicion in the modem policing context is group based and not individual specific. Randomized searches by definition are accompanied by a certain level of suspicion. The constitutional issue, we maintain, should not turn on …

From Privacy To Liberty: Sharing After Lawrence, Thomas P. Crocker

Studio for Law and Culture

From Privacy to Liberty addresses the failure of the Constitution to protect shared social aspects of ordinary life. Under the Supreme Court’s third-party doctrine, if I reveal information to another person, I no longer have an expectation of privacy, and thus, I no longer have Fourth Amendment protection in that information. This much-maligned doctrine has been criticized by many, and defended only once recently in the pages of the Michigan Law Review. The effect of this doctrine is to leave most aspects of ordinary life shared in the company of others constitutionally unprotected. For example, revealing one’s location to …

Unconstitutional Police Searches And Collective Responsibility, Bernard E. Harcourt

Faculty Scholarship

Then the police officer told the suspect, without just cause, "I bet you are hiding [drugs] under your balls. If you have drugs under your balls, I am going to fuck your balls up."

Jon Gould and Stephen Mastrofski document astonishingly high rates of unconstitutional police searches in their groundbreaking article, "Suspect Searches: Assessing Police Behavior Under the U.S. Constitution." By their conservative estimate, 30% of the 115 police searches they studied – searches that were conducted by officers in a department ranked in the top 20% nationwide, that were systematically observed by trained field observers, and that were coded …

Transparent Adjudication And Social Science Research In Constitutional Criminal Procedure, Tracey L. Meares, Bernard Harcourt

Faculty Scholarship

The October 1999 Term was a year of consolidation in the law of police investigations in constitutional criminal procedure. In four short and compact opinions – three supported by sizeable majorities and three written by the Chief Justice – the Supreme Court synthesized and consolidated its criminal procedure jurisprudence, and offered clear guidance to law enforcement officers and private citizens alike. Miranda warnings are required by the Fifth Amendment, and the police must continue to "Mirandize" citizens before conducting any custodial interrogations. Reasonable suspicion under the Fourth Amendment calls for a totality-of-the-circumstances test, and a citizen's flight from the police …

Police, Community Caretaking, And The Fourth Amendment, Debra A. Livingston

Faculty Scholarship

The local police have multiple responsibilities, only one of which is the enforcement of criminal law. Police gather eyewitness accounts in the aftermath of a shooting, but they also assist lost children in locating their parents. Police identify and arrest those who have committed felonies, but they also respond to heart attack victims and help inebriates find their way home. Sometimes police check on the well-being of elderly citizens. As Professor Goldstein said some twenty years ago, "The total range of police responsibilities is extraordinarily broad .... Anyone attempting to construct a workable definition of the police role will typically …

Police Patrol, Judicial Integrity, And The Limits Of Judicial Control, Debra A. Livingston

Faculty Scholarship

I want to thank St. John's for inviting me to be part of this reexamination of Terry v. Ohio – and particularly for this opportunity to participate in a roundtable discussion on the relationship between stop and frisk doctrine and the substantive law. This is an important and timely topic and I am happy to see it being discussed in such a serious venue.

When I was preparing my remarks for today, I thought I should call them, "Terry and the Substantive Law: A Hard, Hard Problem." Fortunately, I have sworn off titles with colons, so I settled on "Police …

The Process Of Terry-Lawmaking, Daniel C. Richman

Faculty Scholarship

The organizers of this Conference obviously gave a lot of thought to its structure. We started off with a session that showed the Supreme Court at its best, working under the gentle leadership of Chief Justice Warren, and guided by the sage counsel of Justice Brennan, to balance the demands of the Fourth Amendment with the exigencies of street encounters. Now we come to a session in which the Supreme Court comes off well, not merely in one, but in both papers. For Steve Saltzburg, Terry itself may not have been perfect, but, over time, the Court has made it …

Search And Seizure Of The Media: A Statutory, Fourth Amendment And First Amendment Analysis, James S. Liebman

Faculty Scholarship

On the evening of October 10, 1974, police appeared at radio station KPFK-FM in Los Angeles with a warrant authorizing them to search the premises for a New World Liberation Front (NWLF) "communique" that took credit for a recent bombing. The officers conducted an intensive 8-hour search-combing files, listening to tapes, and looking through reporters' notes – finally concluding that the NWLF letter was not at the station. The KPFK search warrant was one of six that California law enforcement officials have executed at press offices since 1972. The circumstances surrounding the incident illustrate the rationale behind the recent development …