
Méndez Principles
International guidelines establishing best practices for lawful, ethical investigative interviewing that safeguard human rights and promote reliable information gathering without coercion.
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Evidence & practical tools
Access our collection of evidence-based guidelines, research publications and practical tools designed to support ethical and effective investigative interviewing practice worldwide.


International guidelines establishing best practices for lawful, ethical investigative interviewing that safeguard human rights and promote reliable information gathering without coercion.
View all languages
Journal articles, books (including open access), chapters and grey literature underpinning evidence-based interviewing. Maintained by ETiCA. Users should independently verify all sources.
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Explore links and copies of reports, policy documents and white papers relating to the investigative process and improving practice in law enforcement, justice and other organisational settings.
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An interview diagnostic and evaluation suite. Analyses interviews against evidence-based frameworks, flags strengths and weaknesses, and generates reflective-practice guidance. ETiCA clients only.
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