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Full-Text Articles in Law
Getting Beyond Intuition In The Probable Cause Inquiry, Erica R. Goldberg
Getting Beyond Intuition In The Probable Cause Inquiry, Erica R. Goldberg
Journal Articles
Courts are proudly resigned to the fact that the probable cause inquiry is “nontechnical.” In order to conduct a search or make an arrest, police need to satisfy the probable cause standard, which the Supreme Court has deemed “incapable of precise definition or quantification into percentages.” The flexibility of this standard enables courts to defer to police officers’ reasonable judgments and expert intuitions in unique situations. However, police officers are increasingly using investigative techniques that replace their own observational skills with test results from some other source, such as drug sniffing dogs, facial recognition technology, and DNA matching. The reliability …
Probability, Individualization, And Uniqueness In Forensic Science Evidence: Listening To The Academies, David H. Kaye
Probability, Individualization, And Uniqueness In Forensic Science Evidence: Listening To The Academies, David H. Kaye
Journal Articles
Day in and day out, criminalists testify to positive, uniquely specific identifications of fingerprints, bullets, handwriting, and other trace evidence. A committee of the National Academy of Sciences, building on the writing of academic commentators, has called for sweeping changes in the presentation and production of evidence of identification. These include some form of circumscribed and standardized testimony. But the Academy report is short on the specifics of the testimony that would be legally and professionally allowable. This essay outlines possible types of testimony that might harmonize the testimony of criminalists with the actual state of forensic science. It does …
Rounding Up The Usual Suspects: A Logical And Legal Analysis Of Dna Trawling Cases, David H. Kaye
Rounding Up The Usual Suspects: A Logical And Legal Analysis Of Dna Trawling Cases, David H. Kaye
Journal Articles
Courts are beginning to confront a problem that has divided the scientific community - whether identifying a defendant by fishing through a database of DNA types to find a match to a crime-scene sample reduces the significance of a match. For years, the problem seemed academic. Now that the U.S. has more than five million DNA profiles from convicted offenders and suspects in a national, computer-searchable database, the question has assumed more urgency. Increasingly, individuals are being charged with crimes as a result of a match between their recorded profile and the DNA from a victim or scene of a …
'False But Highly Persuasive:' How Wrong Were The Probability Estimates In Mcdaniel V. Brown?, David H. Kaye
'False But Highly Persuasive:' How Wrong Were The Probability Estimates In Mcdaniel V. Brown?, David H. Kaye
Journal Articles
In McDaniel v. Brown, the Supreme Court will review the use of DNA evidence in a 1994 trial for sexual assault and attempted murder. The Court granted certiorari to consider two procedural issues - the standard of federal postconviction review of a state jury verdict for sufficiency of the evidence, and the district court's decision to allow the prisoner to supplement the record of trials, appeals, and state postconviction proceedings with a geneticist's letter twelve years after the trial.
This essay clarifies the nature and extent of the errors in the presentation of the DNA evidence in Brown. It questions …
Case Comment - People V. Nelson: A Tale Of Two Statistics, David H. Kaye
Case Comment - People V. Nelson: A Tale Of Two Statistics, David H. Kaye
Journal Articles
In recent years, defendants who were identified as a result of a search through a database of DNA profiles have argued that the probability that a randomly selected person would match a crime-scene stain overstates the probative value of the match. The statistical literature is divided, with most statisticians who have written on the subject rejecting this claim. In People v. Nelson, the Supreme Court of California held that when the random-match probability is so small as to make it exceedingly unlikely that any unrelated individual has the incriminating DNA profile, this statistic is admissible in a database-search case. …
The Science Of Dna Identification: From The Laboratory To The Courtroom (And Beyond), David H. Kaye
The Science Of Dna Identification: From The Laboratory To The Courtroom (And Beyond), David H. Kaye
Journal Articles
This article focuses on sequences of DNA base-pairs, which are becoming increasingly important in the field of law. These DNA sequences are used by forensic scientists to discover evidence such as blood stains, semen, saliva, and hair, and has become highly useful in the courtroom with regard to exonerating the innocent and convicting the guilty. Part I of the article examines how courts may (or may not) admit DNA evidence in court through four phases: uncritical acceptance; serious challenges to analytical methods and statistical interpretation of the results; renewed acceptance of DNA evidence; and acceptance of advance systems of DNA …
Do We Need A Calculus Of Weight To Understand Proof Beyond A Reasonable Doubt?, David H. Kaye
Do We Need A Calculus Of Weight To Understand Proof Beyond A Reasonable Doubt?, David H. Kaye
Journal Articles
The commentary on a paper by L.J. Cohen, prepared for a symposium on probability and inference in the law of evidence, shows that the legal requirement of proof beyond a reasonable doubt can be understood simply as demanding a sufficiently high probability that the prosecution's narrative or story of the facts, which captures all the elements of the offense, is true. No separate measure of the "weight" of the totality of the evidence is required to understand the burden of persuasion. Any incompleteness in the evidence can be accounted for by a conditional probability that includes the presence of any …