
DECEPTION DETECTION LAB (DDL)
FORENSIC LINGUISTIC INTELLIGENCEC
Getting to the Truth
At Deception Detection Lab (DDL) we harness proprietary Forensic Statement Linguistic Analysis (FSLA) techniques & technology to detect deception. This enables us to verfiy integrity in high-stakes communication and investigations.

TRUSTED BY LEGAL, INTELLEGENCE & CORPORATE RISK TEAMS
What is FSLA?
"Forensic Statement Linguistic Analysis (FSLA) is the scientific examination of written or spoken language to uncover meaning, intent, credibility, authorship & risk in high‑stakes situations." Chris, Lead Analyst DDL
FSLA-1.0 SYSTEM ARCHITECTURE
The Standard of Linguistic Precision
The methods we employ draw upon peer‑reviewed research in forensic linguistics, authorship analysis, veracity assessment, discourse analysis, and phonetics. We also incorporate metadata analysis for a truly multifaceted intelligence approach.


99+
STATEMENTS ANALYSED
100+
Empirical Precision. Defensible Evidence.
WAYS OUR TEAM HAVE DEMONSTRATED THE IMPACT OF FSLA
Decoding Statement Structure
Our unique FSLA methodology targets the structural DNA of language. By isolating micro-shifts in syntax and verb tense inconsistencies, we extract empirical evidence with scientific methods.
FSLA Benefits
FSLA For
Legal Teams
LEGAL & CRIMINAL INVESTIGATIONS
Empowering investigative credibility and admissibility by identifying linguistic indicators of deception within witness statements and suspect interviews.
DISPUTES & EVIDENCE
FSLA for Disputes, Evidence & Admissibility. We provide technical precision for complex litigation where verbal behaviors require empirical certainty.
LEGAL FSLA & ROI
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Reveals patterns in testimony
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Save Billable Hours
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Reduce time on weak claims
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Successful court outcomes
RISK & INTERNAL INVESTIGATIONS
Mitigating internal fraud and organisational risk by uncovering deceptive structures in high-stakes corporate reporting and correspondence.
THREAT ANALYSIS
Intelligence for Risk, Deception & Internal Investigations. We identify investigative blind spots and mitigate security threats before escalation.
CORPORATE FSLA & ROI
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Faster due diligence
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Spots internal deception early
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Accurate assessments
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Scalable, defensible insights
FSLA For
Corporate Teams
DDL
Analysts
All of our Experts are trained in Forensic Statement Linguistic Analysis (FSLA) providing expert testimony and high-stakes risk assessment for law enforcement and legal counsel through advanced, peer-reviewed linguistic analysis.
Lead Analyst, UK
CHRIS WOODRUFF
Chris, our Lead Analyst, led the development of what we now term FSLA for multinational finance firms, emphasizing deception detection and source verification. He co-led AI-based credibility analysis and advanced LLM developments. As an expert in insurance fraud detection and voice-to-text modelling, Chris co-authored patents for Decision Engine technology and applied deep learning to credibility scoring. He now provides training and consultancy to a range of professional clients including law enforcement and psychology professionals.
EVAGENIA SARRI
Lead Analyst, GR
Evagenia Sarri is a skilled and seasoned Senior Practitioner in FSLA, featured in numerous Greek news programs and articles for her insights. Trained by renowned analyst Peter Hyatt, Jenny, along with our dedicated team, brings a wealth of expertise to every project, and we are fortunate to have her on board.
DDL Clients

PROF. LAW & SENATE CANDIDATE
"Central to the credibility of my submissions, and the impact they achieved, was the work of DDL. DDL analysed a statement made by PwC’s executives in response to the revelations of wrongdoing. DDL’s analysis was ground breaking — and fatal — for PwC’s case, and their attempted cover up..."
DR ANDY SCHMULOW
University of Wollongong, AUS

PARTNER, ODYSSEAN CAPITAL
"...We look forward to working with Chris and the DDL team again, and we have no hesitation in recommending their services to fellow analysts, fund managers, and investment allocators."
ED WIELECHOWSKI
Partner, Odyssean Capital, London, UK
Odyssean Capital

FRAUD ADVOCATE & NETFLIX STAR
"Working with Chris and the team has genuinely been a pleasure...The way language reveals emotion, sensitivity and psychology has truly opened my eyes, and I find myself noticing it everywhere now."
AYLEEN CHARLOTTE
UN Speaker & Author of the S.A.F.E Course

Service Tiers
*Conditions apply.





