Law making becomes an increasingly important function of the higher courts in civil law matters. This observation leads to the question of whether the law making function is nevertheless carried out in a “classical” legal-principled way or whether the courts increasingly employ a political-formative style. To answer this question, one should not only focus on the content of the courts’ reasoning but also on their procedural-institutional framework. From that perspective, the processing of so-called legislative facts is a key issue in determining the role of courts between legal reasoning and social engineering. The paper shows that Germany, England and the United States pursue different lines in processing legislative facts. Notwithstanding these differences, it seems to be the case that the increasing importance of law making will also change the institutional framework of appellate courts towards a quasi-legislative forum.