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 …

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 …

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 …

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 …

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 …

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 …