»The Total Surveillance Account«: The ›total surveillance account‹ is understood as a ›double proportionality test‹. The paper examines whether the constitutional principle of proportionality is suitable as a basis for such an ›account‹. For this purpose, methodological problems of balancing interests and guidelines of constitutional court jurisprudence on security law are analyzed. At the end, a proposal for the operationalization of a surveillance account is developed.weiterlesen