In all democratic states, constitutional courts, which are traditionally empowered to invalidate or to annul unconstitutional statutes, have the role of interpreting and applying the Constitution in order to preserve its supremacy and to ensure the prevalence of fundamental rights. In this sense they were traditionally considered "negative legislators," unable to substitute the legislators or to enact legislative provisions that could not be deducted from the Constitution. During the past decade the role of constitutional courts has dramatically changed as their role is no longer limited to...