"Proportionality" is a contemporary heavy-weight concept which has been described as an element of a globalised international grammar and as a foundational element of global constitutionalism. The article firstly describes the elements of proportionality as they are generally understood in foreign systems, namely whether the limitation pursues a legitimate aim, whether the limitation is capable of achieving this aim, whether the act impairs the right as little as possible and the so-called balancing stage when it must be determined whether the achievement of the aim outweighs the limitation imposed. The German academic Alexy (Theorie der Grundrechte (1986)) developed what he called a mathematical weight formula to deal with the balancing st...