Joanna Crane is a 16-year-old youth who has been waived to adult court to stand trial for a felony crime she committed. Her trial will be the lead story on local news broadcasts, and the headline story in several papers. No one questions whether she committed the murder-even her defense team acknowledges that fact. The central question in the trial will focus on what caused her to commit the murder. There is speculation that her defense team may use something like the "Twinkie defense" in hope of convincing the jury to find her guilty of a lesser offense than first-degree murder. You are lead counsel on Ms. Crane's case. You know that jurors are often confused when presented with scientific findings and jargon, but you also know that it is important for them to understand that there is a link between biochemical conditions and crime. You decide to call an expert witness to the stand and ask her to explain to the jury the importance of biological explanations for criminal behavior. You are satisfied that the expert witness is making a strong argument for the link between biochemical conditions and crime. You ask her to discuss why the importance of lead intake and its relationship to crime is of concern not only in the United States but on a global perspective as well. She notes that areas with the highest concentrations of lead also report the highest levels of homicide. You finally ask the witness to explain the results of her study showing that the area of town where Ms