One of the basic aspects of modern education is the development of key compe-tences. This requirement is included in the legislative acts (domestic ones and those of the European Union) as well as in documents specifying core curricula in individual countries. By analysing this problem as exemplified by Poland, we show that communication competence in the language of the legislative acts, fun-damental for a modern, conscious people, is an absent element of key competences. In the article, we show why it is important to learn about the real features of the legislative acts in a rapidly changing, knowledge-oriented society. We present the results of the analysis of the core curriculum applicable in Poland for secondary schools in terms of legal education. We also present a proposal to include issues developing legal communication competence in the secondary school curriculum.