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How to Admit Scientific Results Using A Substitute Expert

Total Credits: 1.0 including 0.0 Ethics CLE, 1.0 CLE

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Impaired Driving |  Forensic Evidence
Beth Barnes
56 Minutes
Audio and Video
Never expires.


Occasionally the analyst who obtained scientific tests for a case becomes unavailable. This presentation explores options when this occurs, focusing on using a substitute expert without violating hearsay or the Confrontation Clause.  It will also address responding to challenges asserting the State must call every analyst and technician who participated in the analysis.



Beth Barnes's Profile

Beth Barnes Related Seminars and Products

TSRP, Assistant Phoenix City Prosecutor

Phoenix City Prosecutors' Office

Beth Barnes serves as Arizona’s GOHS Traffic Safety Resource Prosecutor (TSRP) through a grant from the Arizona Governor’s Office of Highway Safety and the Arizona DUI Abatement Council.  In this role, she serves as a resource for law enforcement, prosecutors, traffic safety professionals, judges, and the community to more effectively address impaired driving and other traffic safety issues.  She has been an assistant city prosecutor with the City of Phoenix Prosecutor’s Office for almost 29 years, specializing in the prosecution of DUI cases. Beth also serves as the national prosecutor representative on the IACP Technical Advisory Panel for Impaired Driving Programs.