Law Commons^™

Ultracrepidarianism In Forensic Science: The Hair Evidence Debacle, David H. Kaye

Journal Articles

For over 130 years, scientific sleuths have been inspecting hairs under microscopes. Late in 2012, the FBI, the Innocence Project, and the National Association of Criminal Defense Lawyers joined forces to review thousands of microscopic hair comparisons performed by FBI examiners over several of those decades. The results have been astounding. Based on the first few hundred cases in which hairs were said to match, it appears that examiners “exceeded the limits of science” in over 90% of their reports or testimony. The disclosure of this statistic has led to charges that the FBI “faked an entire field of forensic …

Sentencing Rules And Standards: How We Decide Criminal Punishment, Jacob Schuman

Journal Articles

Over the course of the past 300 years, American sentencing policy has alternated between “determinate” and “indeterminate” systems of deciding punishment. Debates over sentence determinacy have so far focused on three main questions: Who should decide punishment? What makes punishment fair? And why should we punish wrongdoers at all?

In this Article, I ask a new, fourth, question: How should we decide punishment? I show that determinate sentencing uses rules to determine sentences, while indeterminate sentencing relies on standards. Applying this insight to federal sentencing practice, I demonstrate that district court judges “depart” or “vary” from the United States Sentencing …

Probability And Punishment: How To Improve Sentencing By Taking Account Of Probability, Jacob Schuman

Journal Articles

The United States Sentencing Guidelines place little emphasis on probability. Instead, the Guidelines recommend a sentence in each case based only on whether certain facts about the offender’s crime exceed a “threshold” level of likelihood. Guidelines sentences therefore fail to reflect the precise odds of each defendant’s wrongdoing, which makes them both inefficient and unfair. This model of decision-making is particularly problematic in drug sentencing, where judges often impose lengthy sentences based on drug quantity calculations that carry a high risk of error. To address these problems, district courts should exercise their discretion and policymakers should implement reforms that incorporate …