The Méndez Principles
International standards for effective interviewing that reject torture and ill-treatment while improving the quality of information obtained.
About ETiCA
Evidence and ethics, translated into practice.
ETiCA (Ethical Training in Interviewing, Communication and Advocacy) is a not-for-profit social enterprise delivering evidence-based training and professional consultancy services worldwide.
Who we are
Specialist expertise with international reach.
We help organisations transform investigative interviewing and professional communication through rigorous research, international human-rights standards and decades of operational experience.
Our work bridges psychological science and real-world investigative practice, producing practical solutions that improve outcomes, reduce risk and uphold human dignity.
What we do
Turning science and human-rights standards into effective practice.
Working with our partners and collaborators, ETiCA (Global) provides specialist investigative expertise, helping organisations strengthen interviewing practice, reduce risk and improve decision-making through ethical, science-informed practice.
We connect world-leading research with decades of operational experience to deliver practical, context-sensitive solutions that improve outcomes while protecting dignity and fairness.
Our approach
Everything we do is anchored in evidence and ethics.
Psychological science
Current research on memory, communication, vulnerability, trauma, neurodiversity and decision-making under pressure.
Human-rights standards
Investigative practices that respect dignity, fairness, safeguards and procedural justice.
Real-world testing
Practical methods developed and applied with justice systems, law-enforcement agencies, human-rights organisations and internal investigators.
Our commitment
The Méndez Principles are at the heart of our foundations and practice.
Members of ETiCA’s Board served on the 15-member international steering committee that developed the Principles on Effective Interviewing for Investigations and Information Gathering.
Their emphasis on rapport, safeguards, professionalism and non-coercive practice runs through our training and advisory work.
Explore the PrinciplesOur expertise
Research leadership and operational experience.
- Academic leadership at internationally recognised universities
- Operational experience in policing, military investigations and criminal justice
- International training delivery across six continents
- Policy development with governments, NGOs and international bodies
- Specialist knowledge of vulnerability, trauma, culture and neurodiversity
