Footnotes (201)



The Problem of the Expert Juror

Paul F. Kirgis

St. John's University School of Law

Temple Law Review, Vol. 75, No. 493, 2002

A fundamental principle of the Anglo-American adjudicative system is that cases must be decided based solely on evidence formally admitted through trial procedures. A jury may not base its decision on information received outside of those formal procedures. Yet jurors bring to the jury room a wealth of education and experience received prior to their service and not subject to the formal rules of proof. That kind of worldly knowledge is a prerequisite to jury service; without a basic level of common knowledge, jurors could not understand the evidence put before them. Problems can arise, however, when jurors bring expertise that exceeds the common knowledge that we expect, and need, them to have. This prospect raises the problem of the expert juror. Especially today, in an evidentiary system remade to require greater scrutiny of expert testimony, courts must be aware of the possibility that jurors will inject unexamined expertise into deliberations, thus subverting the adversarial model of proof we depend on for decisional accuracy and legitimacy. This article examines the problem of juror expertise and suggests an approach for addressing the problem that focuses first on jury selection and second, in extreme cases, on post-verdict review.

Number of Pages in PDF File: 55

Open PDF in Browser Download This Paper

Date posted: March 15, 2008  

Suggested Citation

Kirgis, Paul F., The Problem of the Expert Juror. Temple Law Review, Vol. 75, No. 493, 2002. Available at SSRN: https://ssrn.com/abstract=1106189

Contact Information

Paul F. Kirgis (Contact Author)
St. John's University School of Law ( email )
8000 Utopia Parkway
Jamaica, NY 11439
United States
Feedback to SSRN

Paper statistics
Abstract Views: 1,017
Downloads: 120
Download Rank: 185,933
Footnotes:  201