The book deals with (unfortunately) a highly relevant question of extraordinary measures adopted in many countries in connection with the recent pandemic, and the impact of such measures on ownership rights and constitutional freedoms as a whole. Using the methods of synthesis, analysis and historical comparison, the researchers address this issue from different perspectives, starting with the origins of state-governed crisis management, through the theoretical status of such measures and their role in the legal system, to the question of liability for damages arising from their imposition and application. Based on a critical analysis of existing measures, the book provides feedback on their compliance with basic legal principles and suggests possible solutions of encountered problems.