The present report emphasises the essential need for upholding the established principles and standards of criminal justice in the context of counter-terrorism and counter-radicalisation. In particular, the report argues that observing criminal justice requirements in radicalisation- and terror-rated cases is a key prerequisite for developing effective and sustainable counter-terrorism and counterradicalisation trust-based strategies and approaches that enhance civil and national security. Part 2 of the report provides a thematic overview of the applicable international and EU, in order to examine how the concepts of terrorism and radicalisation are treated as legal subjects. Part 3 looks into the existing international, EU, and national legal instruments for protecting the criminal procedural rights of suspects and accused. Part 4 reviews ongoing international and national efforts that aim to safeguard criminal procedural rights in the context of counter-terrorism with a particular emphasis on the securitisation debate and its implications for the EU domestic and foreign policy.