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Núria Gavaldà

Forensic Linguistics

I am a forensic linguist expert witness and lecturer in forensic phonetics and I am currently a senior partner at Laboratorio SQ-Lingüistas Forenses, where I coordinate its Innovation and Research and Development (R&D) department.

I am also an official expert linguist expert witness appointed by the Col.legi Oficial de Doctors i Llicenciats en Filosofia i Lletres i Ciència, specialised in forensic speaker comparison, transcription of forensic recordings and the analysis of the manipulation of recordings.

Laboratorio SQ-Lingüistas Forenses

What is linguistics?

Linguistics is the major scientific field that studies language, its form, its meaning, and its function. Some of its main subfields include historical linguistics, phonetics and phonology, sociolinguistics, psycholinguistics, computational linguistics and also forensic linguistics, among others.

What is Forensic Linguistics?

Forensic Linguistics (FL) is the interface between language and the law. Thus, forensic linguists analyse linguistic samples that take part in a judicial process. It comprises three main areas of analysis.

  • Language and the Law studies matters such as comprehensibility of legal documents, analysis and interpretation of legal texts, multilingual matters in legal contexts or language minorities and the legal system. 
  • Language and the Legal Processstudies areas related to police interviewing, the analysis of judicial agents (police, judges, jury, etc.) or courtroom interpreting.
  • Language as Evidenceinvolves the use of linguistic evidence in legal cases. The main areas of expert witness work are forensic speech comparison (speaker identification), forensic text comparison (authorship attribution) plagiarism analysis and trademark disputes.

What is a forensic linguist expert witness?

The forensic linguist expert witness carries works in issues related to the third area of research of forensic linguistics: language as evidence. Thus, whenever a linguistic sample, written or oral, is part of a judicial process or investigation, the work of a forensic linguist is necessary. The main areas of expert witness work include, among others:

  • Forensic speaker identification
  • Authorship attribution
  • Plagiarism detection
  • Linguistic analysis of trademarks
  • Speaker or author profiling

Take a look at the expert witness services offered by Laboratorio SQ-Linguistas forenses.

Online courses in Forensic phonetics and linguistics

Online course in forensic speaker comparison - Nuria Gavalda

Online course in forensic speaker comparison

Introductory course in forensic speaker comparison in Spanish

Online courses in forensic linguistics - Nuria Gavalda

Online courses in forensic linguistics

Courses on trademark analysis, writing of forensic reports, and many others.

Media dissemination​


TV3 Catalan channel.
Quèquicom programme:
Detectius de les paraules.
March 2013.


UPF Ràdio. 
Entrevista sobre lingüística Forense, 4º porgrama. 
Con la Dra. Sheila Queralt. ​​Diciembre 2013

L’Alternativa, COPE Catalunya. 
Interview about Óscar Sánchez’ case.

RAC1 Islàndia – De Veu en veu. La veu és el  ​nostre DNI sonor. November 2019

Podcast Catástrofe Ultravioleta. T03E02 – Voz 1. May 2020


Una risa exculpatoria. 
El Periódico de Catalunya. 01/12/2011.