Evidence Commons^™

Visualizing Dna Proof, Nicholas L. Georgakopoulos

Nicholas L Georgakopoulos

DNA proof inherently involves the use of probability theory, which is often counterintuitive. Visual depictions of probability theory, however, can clarify the analysis and make it tractable. A DNA hit from a large database is a notoriously difficult probabi­li­ty theory issue, yet the visuals should enable courts and juries to handle it. The Puckett facts are an example of a general approach: A search in a large DNA database produces a hit for a cold crime from 1972 San Francisco. Probability theory allows us to process the probabilities that someone else in the database, someone not in the database, or …

"Introduction" (Chapter 1) Of Stories About Science In Law: Literary And Historical Images Of Acquired Expertise (Ashgate 2011), David S. Caudill

David S Caudill

This is the introductory chapter of Stories About Science in Law: Literary and Historical Images of Acquired Expertise (Ashgate, 2011), explaining that the book presents examples of how literary accounts can provide a supplement to our understanding of science in law. Challenging the view that law and science are completely different, I focus on stories that explore the relationship between law and science, and identify cultural images of science that prevail in legal contexts. In contrast to other studies on the transfer and construction of expertise in legal settings, the book considers the intersection of three interdisciplinary projects-- law and …

From Gridlock To Groundbreaking: Realizing Reliability In Forensic Science, Jessica D. Gabel

Jessica Gabel Cino

In 2009, The National Academy of Sciences published a scathing report announcing that forensic science is broken and needs to be overhauled. Weaknesses have plagued forensic evidence for decades, and the resulting legal challenges have been hard fought but met with few victories. What we do know is a harsh truth: that faulty forensic science has contributed to the conviction of innocent people—and will continue to do so if the status quo persists.

In recent years, the reality of wrongful convictions has become mainstream through the work of the Innocence Project and other organizations. Out of the 305 DNA-based exonerations …

Defying Dna: Rethinking The Role Of The Jury In An Age Of Scientific Proof Of Innocence, Andrea L. Roth

Andrea L Roth

In 1946, public outrage erupted after a jury ordered Charlie Chaplin to support a child who, according to apparently definitive blood tests, was not his. Half a century later, juries have again defied apparently definitive evidence of innocence, finding criminal defendants guilty based on a confession or eyewitness notwithstanding exculpatory DNA test results. One might expect judges in such cases to direct an acquittal, on grounds that the evidence is legally insufficient because no rational juror could find guilt beyond a reasonable doubt. Yet few if any do. Instead, courts defer to juries when they form an actual belief in …