Law Commons^™

"Sweet Childish Days": Using Developmental Psychology Research In Evaluating The Admissibility Of Out-Of-Court Statements By Young Children, Lynn Mclain

All Faculty Scholarship

A three-year-old child, while being bathed by her babysitter, innocently mentions that her “pee-pee” hurts. When the babysitter asks the child how she hurt it, she says, “Uncle Ernie (her mother’s boyfriend) told me not to tell.” A subsequent medical examination reveals that the child has gonorrhea, a sexually transmitted disease.

By the time of trial, the child is four and-a-half-years old. When questioned by the trial judge, she cannot explain to the judge’s satisfaction, “the difference between the truth and a lie.” Moreover, she has no long term memory of the incident. The judge rules the child incompetent to …

Brain Scans As Evidence: Truths, Proofs, Lies, And Lessons, Owen D. Jones, Francis X. Shen

Vanderbilt Law School Faculty Publications

This contribution to the Brain Sciences in the Courtroom Symposium identifies and discusses issues important to admissibility determinations when courts confront brain-scan evidence. Through the vehicle of the landmark 2010 federal criminal trial U.S. v. Semrau (which considered, for the first time, the admissibility of brain scans for lie detection purposes) this article highlights critical evidentiary issues involving: 1) experimental design; 2) ecological and external validity; 3) subject compliance with researcher instructions; 4) false positives; and 5) drawing inferences about individuals from group data. The article’s lessons are broadly applicable to the new wave of neurolaw cases now being seen …