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Penn State Law

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Probability And Punishment: How To Improve Sentencing By Taking Account Of Probability, Jacob Schuman Jan 2015

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 …


'False But Highly Persuasive:' How Wrong Were The Probability Estimates In Mcdaniel V. Brown?, David H. Kaye Jan 2009

'False But Highly Persuasive:' How Wrong Were The Probability Estimates In Mcdaniel V. Brown?, David H. Kaye

Journal Articles

In McDaniel v. Brown, the Supreme Court will review the use of DNA evidence in a 1994 trial for sexual assault and attempted murder. The Court granted certiorari to consider two procedural issues - the standard of federal postconviction review of a state jury verdict for sufficiency of the evidence, and the district court's decision to allow the prisoner to supplement the record of trials, appeals, and state postconviction proceedings with a geneticist's letter twelve years after the trial.

This essay clarifies the nature and extent of the errors in the presentation of the DNA evidence in Brown. It questions …