Articles Posted in Criminal Procedure

Kansas v. Glover and Conditional Irrelevance
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Cornell law professor Sherry F. Colb discusses the concept of “conditional irrelevance”—which she first identified in a law review article in 2001—and explains why the concept is useful for understanding the arguments before the U.S. Supreme Court in Kansas v. Glover. Through the lens of conditional irrelevance, Colb explains why the knowledge of one fact (that the owner of the vehicle in that case lacked a valid license) should not itself provide police reasonable suspicion to stop the vehicle.

You Have the Right to the Silent Treatment
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Cornell law professor Sherry F. Colb proposes the psychological effects of the “silent treatment” as a possible reason that arrested individuals who understand their Miranda rights nevertheless confess to the police. Rather than seeking to dispute or displace other explanations of the phenomenon, Colb suggests that when police leave a suspect alone in his cell, he may experience their exit as the silent treatment and confess as an attempt to end it.

What Insanity and Animal Welfare Have in Common
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Cornell law professor Sherry F. Colb why the question whether a state may abolish the insanity defense (presently before the Supreme Court) is similar to the question whether a state should adopt so-called animal welfare laws. Colb argues that both the insanity defense and animal welfare measures provide the public with a sense of moral relief but only if we willfully ignore the reality of how animals and criminal defendants are treated.

When Criminal Defendants Tell You Who They Are
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Cornell law professor Sherry F. Colb discusses the rationale behind Federal Rule of Evidence 609, which allows for impeachment of criminal defendants’ testimony with prior convictions, and the seminal cases applying that rule. Colb explains why the jury’s reaction to evidence of prior convictions is both predictable and irrational.

How to Detect a Liar
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Cornell law professor Sherry F. Colb responds to a colleague’s claim (yet unconfirmed) that jurors have an easier time distinguishing truth from falsehood when they read a transcript of testimony than when they listen to and watch the testimony directly. Assuming the claim is true, Colb describes why that claim might at first be surprising and also why, on further consideration, it makes sense. She proposes that if the claim is true, we ought perhaps to consider whether the distractors inherent in live testimony should excludable under the Federal Rules of Evidence.

Is Physical Liberty an Important Right?
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Cornell law professor Sherry F. Colb comments on a decision the U.S. Supreme Court issued toward the end of the last term, in which a majority of the Court ruled that as long as police have probable cause for an arrest, it does not matter if their actual motivation for arresting someone violates the person’s First Amendment rights. Colb considers whether such pretextual, speech-based arrests are a problem, how they differ from other pretextual arrests, and how the ruling in this case resembles the law of a seemingly different area—post-conviction incarceration for convicted criminals.

The Court That Cried “Exigency”
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Cornell law professor Sherry F. Colb and George R. El-Khoury, JD, comment on a decision by the U.S. Supreme Court last month applying the “exigent circumstances” exception to the warrant requirement to permit the admission in evidence of a blood-alcohol test administered on an unconscious driver. Colb and El-Khoury describe some of the problems with using the exigent circumstances exception to arrive at the result in this case and propose some alternative approaches that might yield the same outcome but for stronger reasons.

Does the Constitution Require the Insanity Defense?
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Cornell law professor Sherry F. Colb discusses a question the U.S. Supreme Court will consider next term—whether the U.S. Constitution prohibits a state’s abolition of the insanity defense. Colb points out the various ways in which our current criminal justice system arbitrarily excuses some sources of criminal conduct but not others, and she argues that because of these inconsistencies already inherent in the system, the insanity defense cannot logically be required.

A Welcome Turn to Violence
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Cornell law professor Joseph Margulies describes several refreshing perspectives in the area of criminal justice reform that tackle the crucial and difficult issue of violent crime. By way of background, Margulies explains the simplistic and erroneous idea that drives the enormous (and enormously expensive) carceral state and explains the importance of recognizing humanity in order to begin to dismantle it.

Should Police Need a Search Warrant to Chalk Tires and Discover Illegal Parking?
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Cornell law professor Sherry F. Colb comments on a recent decision by the US Court of Appeals for the Sixth Circuit holding unconstitutional the use of chalk by police officers to track whether a parked car has remained longer than permissible. Colb considers whether the decision—which seems to faithfully apply the US Supreme Court’s decisions in Jones v. United States and Florida v. Jardines—falls short of the “reasonable expectation of privacy” test the Court established in Katz v. United States. Colb proposes a test that instead combines trespass, information-gathering, as well as some privacy interest in that information, arguing that such a test would better reflect the scope of the Fourth Amendment.

Supreme Court Takes a Case About Jury Unanimity
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Cornell law professor Sherry F. Colb comments on a case in which the US Supreme Court recently granted review, Ramos v. Louisiana, which presents the question whether states may permit conviction of an accused criminal on less than a unanimous jury voting “guilty.” Colb explains the doctrine of incorporation—by which most provisions of the Bill of Rights are held to be applicable as against the states as well as the federal government through the Fourteenth Amendment—and explains the possible significance of a unanimous jury verdict.

“Implied Consent” and the Fourth Amendment Go To the US Supreme Court
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Cornell law professor Sherry F. Colb comments on a case the US Supreme Court recently agreed to review raising the question whether a state statute may constitutionally conduct a blood test on an unconscious driver suspected of drunk driving under a theory of “implied consent.” Colb explains the meaning of “implied consent”—deceivingly named, for there is no actual consent—and predicts that, consistent with the Court’s recent precedent on a similar issue, the state statute should be struck down.

Who’s a Good Boy? US Supreme Court Considers Again Whether Dog Sniffs Are Searches
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Cornell law professor Sherry F. Colb comments on a case in which the US Supreme Court is considering whether to grant review that presents the question whether police must obtain a search warrant before bringing a trained narcotics dog to sniff at a person’s door for illicit drugs. Colb highlights some of the most interesting arguments on the issue and explains some of the nuances that make a clear answer more elusive in these cases.

2018 Year in Review: Child Sex Abuse Statutes of Limitations, and the Catholic Bishops’ Spiritual Retreat
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Marci A. Hamilton—the Robert A. Fox Leadership Program Professor of Practice, and Fox Family Pavilion Resident Senior Fellow in the Program for Research on Religion at the University of Pennsylvania—comments on the progress (and lack thereof) of legislation in 2018 affecting child sex abuse victims’ access to justice across the United States. In particular, Hamilton calls upon American bishops to start advocating for, rather than against, the victims of abuse.

Rape and Confessions
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Cornell law professor Sherry F. Colb explains how a better understanding of consent in a police interrogation context can inform our understanding of consent in a sexual context. Colb argues that the solution to both is to educate everyone more effectively about what will and will not successfully make things (the interrogation or the sexual activity) stop.

Collins v. Virginia: An Innocuous, Fourth Amendment Decision About Curtilage
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Cornell law professor Sherry F. Colb comments on the US Supreme Court’s precedents recognizing, yet not clearly defining, “curtilage”—the area near one’s house that is constitutionally protected against warrantless searches by law enforcement. As Colb explains, the Court’s cases involving curtilage, including its recent decision in Collins v. Virginia leave many Fourth Amendment questions unanswered.

Carpenter and the Beginning of the End of Privacy
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Cornell law professor Sherry F. Colb comments on the US Supreme Court’s recent decision in Carpenter v. United States, in which the Court held that the government must have a search warrant to obtain an individual’s cell-site location information (CSLI). Colb describes the Court’s holding and the dissenting opinions, and considers the Court’s minority (but growing) view that only property, and not privacy, is protected under the US Constitution—particularly when privacy rights encompass the right of a woman to obtain an abortion and the right of same-sex couples to engage in private, consensual sexual acts.

Rental Cars, Privacy, and Suppression of Evidence
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Cornell law professor Sherry F. Colb comments on the recent decision by the US Supreme Court in Byrd v. United States, in which the Court unanimously held that a lawful but contractually unauthorized driver of a rental car has a reasonable expectation of privacy against police searches of the car. Colb explains that the Court’s ruling is significant for more than its face value; it signals a rejection of property-linked formalism and bolsters the ability of the Fourth Amendment to keep certain types of police in check.

Do Defendants Have the Right to Make Bad Decisions?
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Cornell University law professor Sherry F. Colb comments on the case before the US Supreme Court, McCoy v. Louisiana, in which the Court will decide whether a criminal defendant has a Sixth Amendment right to stop his attorney from announcing to a jury that his client killed the victims for whose murder he is standing trial. Colb considers the argument that the lawyer's behavior constituted deficient performance counsel and argues that in that case, the defendant's conviction should be reversed and remanded for a new trial.

What Miranda Can Teach Us About Sexual Consent
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Cornell University law professor Sherry F. Colb compares the requirement that police officers advise suspects in custody of their Miranda rights with the proposal that we as a society adopt a "Yes means yes" requirement for sexual consent. Colb describes how many of the fears about Miranda never actually came to fruition and points out how both the strengths and weaknesses of Miranda can help us to figure out how best to design the rules defining sexual assault.

Meet our Columnists
Vikram David Amar

Vikram David Amar is a Distinguished Professor of Law at UC Davis School of Law and a Professor of Law and Former Dean at the University of Illinois College of Law on the Urbana-Champaign campus.... more

Neil H. Buchanan

Neil H. Buchanan, an economist and legal scholar, is a visiting professor at the University of Toronto Law school. He is the James J. Freeland Eminent Scholar Chair in Taxation Emeritus at the... more

John Dean

John Dean served as Counsel to the President of the United States from July 1970 to April 1973. Before becoming White House counsel at age thirty-one, he was the chief minority counsel to the... more

Michael C. Dorf

Michael C. Dorf is the Robert S. Stevens Professor of Law at Cornell University Law School. He has written hundreds of popular essays, dozens of scholarly articles, and six books on constitutional... more

Samuel Estreicher

Samuel Estreicher is Dwight D. Opperman Professor of Law and Director of the Center of Labor and Employment Law and Institute of Judicial Administration at New York University School of Law. He... more

Leslie C. Griffin

Dr. Leslie C. Griffin is the William S. Boyd Professor of Law at the University of Nevada, Las Vegas Boyd School of Law. Prof. Griffin, who teaches constitutional law and bioethics, is known for... more

Joanna L. Grossman

Joanna L. Grossman is the Ellen K. Solender Endowed Chair in Women and Law at SMU Dedman School of Law and is currently serving as the Herman Phleger Visiting Professor at Stanford Law School. ... more

Marci A. Hamilton

Professor Marci A. Hamilton is a Professor of Practice in Political Science at the University of Pennsylvania. She is also the founder and CEO of CHILD USA, a 501(c)(3) nonprofit academic think... more

Joseph Margulies

Mr. Margulies is a Professor of Government at Cornell University. He was Counsel of Record in Rasul v. Bush (2004), involving detentions at the Guantánamo Bay Naval Station, and in Geren v. Omar... more

Austin Sarat

Austin Sarat is the William Nelson Cromwell Professor of Jurisprudence and Political Science at Amherst College.Professor Sarat founded both Amherst College’s Department of Law,... more

Laurence H. Tribe

Laurence H. Tribe is the Carl M. Loeb University Professor Emeritus at Harvard University and Professor of Constitutional Law Emeritus at Harvard Law School, where he has taught since 1968. Born in... more

Lesley Wexler

Lesley Wexler is a Professor of Law at the University of Illinois College of Law. Immediately prior to taking the position at Illinois, Wexler was a Professor of Law at Florida State University,... more