The Plea Bargain and the Human Toll of Administrative Convenience: A Systematic Review and Meta-Analysis of Plea Bargaining, Wrongful Convictions, Structural Pressures, Informational Asymmetries, Cognitive Biases, Prosecutorial Overreach, and Coerced Guilty Pleas in the United States Criminal Justice System

The United States criminal justice system has become, in practice, a system of pleas. Approximately 97% of federal convictions and 94% of state convictions result from negotiated guilty pleas rather than jury trials, yet no comprehensive meta-analysis has synthesized the empirical evidence on the relationship between plea bargaining practices and wrongful convictions, structural coercion, racial disparities, and reform efficacy. This systematic review and meta-analysis, conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) 2020 framework, synthesized findings from 35 studies (k = 35, 64 extracted data rows) to address four research questions spanning the full dimensions of plea bargaining injustice. Random-effects meta-analyses revealed that: (a) the pooled proportion of false or wrongful guilty pleas across study contexts was 0.254 (95% CI 0.153, 0.391), indicating that approximately one quarter of defendants in studied populations entered wrongful guilty pleas; (b) pretrial detention increased the likelihood of guilty plea or conviction by 15.4 percentage points (95% CI 11.6, 19.3), confirming a robust causal coercion mechanism; (c) minority defendants faced 40% higher odds of adverse plea outcomes compared to similarly situated White defendants (pooled OR = 1.40, 95% CI 1.23, 1.59); and (d) drug court diversion programs demonstrated modest efficacy (pooled OR = 1.37, 95% CI 1.08, 1.74), with adult programs showing significant effects while juvenile programs yielded nonsignificant results. This dissertation introduces Coerced Rationality Theory as a novel integrative framework explaining how structural pressures, informational asymmetries, and cognitive biases converge to produce nominally voluntary but substantively coerced guilty pleas. Findings carry significant implications for legislative reform of sentencing and bail practices, judicial oversight of plea negotiations, prosecutorial accountability, racial equity in the administration of justice, and the preservation of constitutional protections guaranteed by the Fifth and Sixth Amendments.