Post-Detection Policy for Extraterrestrial Intelligence: Frameworks, Scales, and International Principles

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Post-detection policy is a practical framework for detecting, verifying, announcing, and responding to potential extraterrestrial signals, drawing on SETI/METI/CETI work and using significance scales like Rio and the San Marino Scale to guide actions and messaging, with international consultation and joint messaging promoted by Brookings and the IAA Declaration, though not legally binding.

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Post-detection policy - Wikipedia

Post-detection policy is a framework for the detection, analysis, verification, announcement, and response to confirmed signals from extraterrestrial civilizations, developed by scientists and NGOs without binding government adoption and guided by factors such as readiness, how news is released, and message comprehensibility, incorporating scales like the Rio Scale and San Marino Scale, exploring scenarios from intelligent radio signals to microbial life, considering cultural and political reactions and information-sharing risks, and CETI challenges, with notable proposals including the Brookings Report and the IAA Declaration advocating international consultation, UN involvement, joint messaging, and public disclosure.