Generally, evidence of an opinion is not admissible under section 76 of the Evidence Act (1995). However, expert opinion evidence is an exception to this where the expert complies with the five rules of admissibility (Australian Law Reform Commission 2005). Prior to any preparation for a court appearance, an expert should ensure their report is within their specialised knowledge based on ‘training, study or experience’ (Evidence Act 1995, s. 79). If not, it will be rendered inadmissible from the outset and there will be no opportunity to give oral evidence.
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(National Forensic Technology Center 2013) |
When an expert witness prepares for trial, this requires more than merely writing a well-structured report. To be sufficiently prepared, the expert should study the material, as it is difficult to answer questions if they are unfamiliar with the report. In saying that, oral testimony is not a memory test, and it is not unusual to refer to the report. Prior to the mock trial, I found it difficult to prepare for because I hadn’t written the report myself. After giving oral evidence, I learnt the importance of always writing your own report because the process of gathering evidence as part of the investigation enables the expert to understand and know its contents.
(Primeau Forensics 2014)
In addition to a thorough and comprehensive knowledge of the report, an expert must be able to explain their evidence succinctly and in plain English. This is important because the jury is not made up of forensic accountants, so evidence must be framed in a way that they can understand. The best way to keep a juror engaged is to get to the point quickly and explain it concisely (Teague 2011, 304). Even where there is no jury, technical jargon should still be avoided to help the judge and barristers understand.
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(The Focal Point LLC 2012) |
Another issue in the mock trial was that students were inclined to answer in a way that favoured their own report and the client’s position. I learnt that experts must always answer confidently and honestly, even when they think it may harm their client’s case or contradict an aspect of the report. This is in light of the fact that the barrister for each party is trying to interpret evidence in favour of their client (Kolczynski 2016). When I gave oral testimony, the questions asked in cross-examination raised valid points that contradicted my report and favoured the defence’s argument. I was given personal feedback that I responded confidently, recognising my report’s weaknesses. This demonstrated how it can be difficult for an expert to honestly answer questions that may discredit their report.
Overall, the mock trial was a valuable learning experience to help my understanding of the major problems facing an expert witness, and how they can prepare for giving evidence in court.
If you would like to read more about the five rules of admissibility for expert opinion evidence, you can do so in Chapter 9 here: http://www.alrc.gov.au/sites/default/files/pdfs/publications/ALRC102.pdf
References
Australian Law Reform Commission. 2005. Uniform Evidence Law (ALRC Report 102). Accessed May 25, 2016. http://www.alrc.gov.au/sites/default/files/pdfs/publications/ALRC102.pdf.
Beran, Roy. 2009. “The role of the expert witness in the adversarial legal system.” Journal of Law and Medicine 17(1): 133-137. Accessed May 21, 2016. http://www.westlaw.com.au/maf/wlau/app/document?docguid=I2a88fb96cfdc11e08eefa443f89988a0&tocDs=AUNZ_AU_JOURNALS_TOC&isTocNav=true&startChunk=1&endChunk=1.
Evidence Act (Cth). 1995. Accessed May 25, 2016. https://www.legislation.gov.au/Details/C2016C00363.
Federal Court Rules (Cth). 2011. Accessed May 25, 2016. https://www.legislation.gov.au/Details/F2016C00359.
Kolczynski, Phillip. “Ethical Challenges for Experts in Civil Litigation.” Accessed May 25, 2016. http://expertpages.com/news/ethical_challenges_for_experts_i.htm.
National Forensic Science Technology Center. 2013. “Who can serve as an expert forensic science witness at court?” Image. Accessed May 25, 2016. http://www.forensicsciencesimplified.org/legal/who.html.
Primeau Forensics. 2014. “How to Prepare for Testifying in Court as an Expert Witness.” YouTube video, posted February 27. Accessed May 25, 2016. https://www.youtube.com/watch?v=VBS8o0H6z2Q.
Teague, Carl. 2011. “Experts at Trial.” In Litigators on Experts: Strategies for Managing Expert Witnesses from Retention Through Trial, edited by Wendy Couture and Allyson Haynes, 295-316. Chicago: ABA Book Publishing.
The Focal Point LLC. 2012. “Expert Witness Graphics: Dispelling Myths and Maximising Effectiveness.” Image. Accessed May 25, 2016. http://www.thefocalpoint.com/insights/articles/7/167.