Article 90/5 of the Turkish Constitution, one of the most well-known constitutional provisions to Turkish human rights defenders, lays down the reception process of international treaties into domestic law. Despite its fame, the debate on the legal meaning of that provision continues after seventeen years of its enactment. The first part of the article briefly presents our take on that debate. Contrary to the dominant discourse, we argue that the provision does not divulge a hierarchy of norms. But regardless of the outcome of this extensive theoretical debate, national bodies face various practical problems as to implementing international treaties in domestic proceedings. The remainder of the article is devoted to these problems. Since international law is not in an absolute harmony within itself, practitioners may encounter multiple conflicting international norms applicable to the issue before them. Furthermore, international norms may be in conflict with the Constitution, with rulings of national high courts or with domestic norms that are excluded from judicial review. In such cases, how will practitioners fulfill their duty to comply with international norms? The article argues that most of these problems can be solved in light of "pro homine" and "völkerrechtsfreundlichkeit" rules of interpretation.