Evidence Commons^™

Can Jury Trial Innovations Improve Juror Understanding Of Dna Evidence?, B. Michael Dann, Valerie P. Hans, David H. Kaye

Cornell Law Faculty Publications

A single spot of blood on a pink windowsill will tell investigators who broke a windowpane, turned a lock, and kidnapped 2-year-old Molly Evans from her bedroom in the middle of the night. An expert witness will testify that the DNA profile of the blood evidence recovered from the windowsill was entered into CODIS, an electronic database of DNA profiles. That process yielded a “hit,” identifying the defendant as the most likely source of the blood inside Molly’s room.

But will jurors be able to understand the expert’s intricate analysis and use it to reach a verdict? And what—if any—steps …

Same Old, Same Old: Scientific Evidence Past And Present, Edward K. Cheng

Michigan Law Review

For over twenty years, and particularly since the Supreme Court's Daubert decision in 1993, much ink has been spilled debating the problem of scientific evidence in the courts. Are jurors or, in the alternative, judges qualified to assess scientific reliability? Do courts really need to be concerned about "junk science"? What mechanisms can promote better decision making in scientific cases? Even a cursory scan of the literature shows the recent explosion of interest in these issues, precipitating new treatises, hundreds of articles, and countless conferences for judges, practitioners, and academics. To this literature, Professor Tal Golan adds Laws of Men …

Cheating The Constitution, Pamela R. Metzger

Faculty Journal Articles and Book Chapters

It is black letter constitutional law: To prove a criminal offense, the prosecution must prove every element of the offense, by proof beyond a reasonable doubt, and the constitution entitles a defendant to confront and cross-examine all witnesses against him. Yet, for the past thirty years, state legislatures have quietly approved laws that cheat the constitution. By that, I mean that these laws fly, undetected, beneath the constitutional radar while violating fundamental constitutional rights.

Although other constitutional cheats abound, in this article I consider one archetypical cheat: statutes that permit state prosecutors to use hearsay state crime laboratory reports, in …

A Study Of Juror Expectations And Demands Concerning Scientific Evidence: Does The "Csi Effect" Exist?, Hon. Donald E. Shelton, Young S. Kim, Gregg Barak

Vanderbilt Journal of Entertainment & Technology Law

This article is the first empirical study of jurors designed to investigate the existence and extent of the "CSI effect." The authors conducted a survey of 1027 persons who had been called for jury duty in a Michigan state court during a nine-week period in June, July and August, 2006. This survey examined the summoned jurors' demographic information, television viewing habits, their expectations that the prosecutor would produce scientific evidence and whether they would demand scientific evidence as a condition of a guilty verdict.

This study of juror expectations and demands about scientific evidence in relationship to other types of …