Jury CSI effectLay witness:-saw/did/heard/no opinionsExpert witness:-education-training-skill-experience-knowledge in particular subject
Frye v. United States, 293 F. 1013 DC Cir (1923):-generally acceptedDaubert v. Merrell Dow Pharmaceuticals, 509 U.S. 579 (1993):-Trial judges are gatekeepers-Established criteria for admissionWhether the scientific technique or theory can be tested.Whether the technique has been subject to peer review and publication.The techniques potential rate of error.Existence and maintenance of standards .Whether the scientific theory or method has attracted widespread acceptance within a relevant scientific community. -Precedence
Pre-Trial:-Conference w/attorney-explain processes-explain displays/charts-explain technical testimony-discuss questions-opposing counsel-perfectly legal-not providing you answers-Know court/courtroomDay of Court:-early-contact attorney-reports/exhibits Outside Courtroom-other involved agencies-professional-don’t discuss case-read your reports-pictures/exhibits
Called In: (Bailiff)-walk to stand-address judge-carry folder in left hand-upright/steady-take stand-remain standingSpeaking:-clear/loud-oath/straightOn the stand:-up straight-alert-focused-interested
ESTABLISHING EXPERT STATUS:Trial judge (gatekeepers)Plaintiff/DefenseDirect examination:-Name-Employment (Title)DutiesLength3 P’s-EducationDegrees/Institutions-TrainingSpecializedCertifications/agencySpecific to duties-ExperienceTimeEmployer (s) Duties-PublishedStudiesBooks/Papers (peer reviewed)
Opposite side:-Stipulate -Cross examination:DiscreditSpecific questionsArticles /studies disputingOkay to say “I don’t know”Judge Rules:Accept-testify to opinionDeny-testify to what you didPrecedenceCourt accepted expert witness
Expert opinion-testing procedures-scientific processes-results-opinion/findingsNo biasesNo stake in outcomeDuty to truth only!
Testifying:-listen to question-pause for 1-2 seconds-face jury-answer clearly/concise-ask for clarification-you set the pace-never lie!Notes/Report (ask permission)-case specific-aid for memory-permission to get upREMEMBER: RESPECT JUDGE’S HOUSE!!
Cross Examination:-dreaded!!!-may stipulate (over)-not personal-reasonable doubt-discipline questions-low/high knowledge-articles/studies-error rates-”is it possible?”-don’t argue-courteous/smile-blocking trick-answer what you can
Expert Witness testimony South Puget Sound Community College Forensics Department
Expert Witness Jury CSI effect Lay witness: -no opinions Expert witness: -knowledge in particular subject -testify to opinions
Expert Witness Frye v. United States, 293 F. 1013 DC Cir (1923): -generally accepted Daubert v. Merrell Dow Pharmaceuticals, 509 U.S. 579 (1993): -judges are gatekeepers -criteria for admission -precedence
Expert Witness Pre-Trial: -Conference w/attorney -explain processes -explain displays/charts -explain technical testimony -discuss questions -opposing counsel -Know court/courtroom Day of Court: -contact attorney -reports/exhibits Outside Courtroom -professional -don’t discuss case -read your reports -pictures/exhibits
Expert Witness Called In: -walk to stand/address judge -folder in left hand -upright/steady -take stand -remain standing Speak: -clear/loud -oath/straight On the stand: -sit straight -alert -focused -interested
Expert Witness Expert opinion -testing procedures -scientific processes -results -opinion/findings Duty to truth only!
Expert Witness Direct Examination: (established expert) -employment/tenure/duties -education/train/experience Specific case: -role/function -specific actions -opinion (s)
Expert Witness Testifying: -pause for 1-2 seconds -face jury -you set the pace -never lie! -notes/report (ask permission) -case specific/memory aid -permission to get up REMEMBER: RESPECT JUDGE’S HOUSE!!
EXPERT WITNESS Cross Examination: -reasonable doubt/ask discipline questions -articles/studies/error rates -”is it possible?” -don’t argue/courteous/smile -answer what you can