Dr Richard Rhodes

Richard RhodesDr Richard Rhodes (BA MSc PhD MCSFS) is a senior forensic consultant at J P French Associates.  He has carried out research into the effects of aging on the voice in forensic contexts and assessing the strength of non-contemporaneous evidence statistically, and on cognitive bias in relation to forensic speech science.  He is a member of the International Association for Forensic Phonetics and Acoustics (IAFPA) and sits on the executive committee as treasurer & membership secretary.

Case Experience

Dr Rhodes has over 8 years’ experience at J P French Associates; he has worked on over six hundred forensic cases including a range of high-profile and international proceedings.  He works for both prosecution and defence, and provides evidence as an expert witness in court in the areas of forensic speaker comparison, transcription and disputed utterance analysis, as well as other miscellaneous cases.


2008 – BA (First class honours) Applied English Language Studies, University of Reading
2009 – MSc Forensic Speech Science, University of York
2012 – PhD Linguistics (Forensic Speech Science), University of York

Positions and Offices

2012-present – J P French Associates, York
2013-present – Associate Lecturer, Department of Language and Linguistic Science, University of York
2013-present – Treasurer & membership secretary and member of the executive committee for the International Association for Forensic Phonetics & Acoustics

2010-2012 – Postgraduate Teacher, Department of Language and Linguistic Science, University of York


Member of the International Association for Forensic Phonetics and Acoustics
Member of the British Association of Academic Phoneticians
Member of the International Phonetic Association
Member of the International Society for Phonetic Sciences
Professional Member of the Chartered Society of Forensic Sciences


McDougall, K.; Rhodes, R.; Duckworth, M.; French, J. P. & Kirchhübel, C. (2019) Application of the TOFFA framework to the analysis of disfluencies in forensic phonetic casework. Proceedings of 19th ICPhS.

Hughes, V. & Rhodes, R. (2018) Questions, propositions and assessing different levels of evidence: Forensic voice comparison in practice. Science & Justice, 2018.

Rhodes, R. (2017) Aging effects on voice features used in forensic speaker comparison. International Journal of Speech, Language and the Law, 24.2: 177-199.


Rhodes, R.; Bartle, A.; Dellwo, V.; Holmes, F.; Kavanagh, C. & van der Vloed, D. (2019) IAFPA Code of Practice Review. IAFPA conference, Istanbul, Turkey.

Rhodes, R & Hughes, V. (2018) Assessing different levels of evidence in forensic speaker comparison. IAFPA conference, Huddersfield, UK.

McDougall, K.; Rhodes, R.; Duckworth, M.; French, J. P.; Kirchhübel, C. & Wormald, J. (2018) Applying disfluency analysis in forensic speaker comparison casework. IAFPA conference, Huddersfield, UK.

Bartle, A.; Eardley, M.; Hargreaves, C.; Harrison, P.; Kaplan, A.; Rhodes, R.; & Smith, C. (2018) An approach to audio enhancement validation. IAFPA conference, Huddersfield, UK.

Rhodes, R.; French, J.P.; Harrison, P.; Hughes, V.; Kirchhübel, C. & Wormald, J. (2017) Which questions, propositions and relevant populations should a speaker comparison expert assess? IAFPA conference, Split, Croatia, 9-12 July.

French, J. P.; Harrison, P.; Kirchhübel, C.; Rhodes, R. & Wormald, J. (2017) From receipt of recordings to dispatch of report: Opening the blinds on laboratory practices. IAFPA conference, Split, Croatia, 9-12 July.

Rhodes, R. (2016) Cognitive bias in forensic speech science: risks and proposed safeguards. IAFPA conference, York, UK, 24-27 July.

Harrison, P. & Rhodes, R. (2016) The ‘black box’ misnomer. IAFPA conference, York, UK, 24-27 July.

Kirchhübel, C.; French, J. P.; Rhodes, R.; Harrison, P. T.; Bhagdin, A. S. & Wormald, J. (2016) Understanding of forensic speaker comparison conclusions in the legal setting.  IAFPA conference, York, UK, 24-27 July.

Wormald, J.; French, J. P.; Harrison, P. T.; Kirchhübel, C.; Rhodes, R. & Watt, D. (2016) Voice quality in Panjabi English: Sociophonetic and forensic considerations. BAAP conference, Lancaster, UK, 30 March – 1 April.

French, J. P.; Harrison, P. T.; Kirchhübel, C. & Rhodes, R. (2015) Standards for Forensic Speaker Comparison samples. Methodological Guidelines for semi-automatic and automatic speaker Recognition for case assessment and interpretation; Meeting of the ENFSI Monopoly project in Warsaw, Poland; 22nd – 23rd September.

Rhodes, R. (2014) Cognitive bias in forensic speech science. IAFPA conference, Zurich, Switzerland.

Rhodes, R. (2013) Changes in the voice across the adult lifespan: Formant frequency-based likelihood ratios and ASR performance. IAFPA conference, Tampa, Florida, USA, 21-25 July.

Rhodes, R. (2012) Presenting linguistic and geographical data using Tableau, Advances in Visual Methods in Linguistics, York, 5-6 September.

Rhodes, R. (2011) Changes in the voice across early adulthood, IAFPA conference, Vienna, 24-28 July.

Rhodes, R. & Setter, J. (2009) Using the formant dynamic approach to forensic speaker comparison in a case of voice disguise, IAFPA conference, Cambridge, 2-5 August.


Dr Rhodes has delivered lectures, seminars and practical analysis sessions for undergraduates and postgraduates on linguistics and forensic phonetics at the University of York and has given training on forensic phonetics and acoustics at the International Summer School in Forensic Linguistic Analysis at Aston University.

Curriculum Vitae

Dr Richard Rhodes CV