In this article, I analyze two cases where the Turkish Constitutional Court dissolved political parties during the 1990s. Specifically, I examine the cases against the Islamist Refah (Welfare/Well-Being) Party and the pro-Kurdish Halkin Emek Partisi (People's Labor Party). While the former was charged with threatening the secular basis of the national social order, the charges against the latter were around its allegedly separatist character. I engage in an in-depth analysis of the lines of argument in the indictments, arguments of defense deployed by the parties, and their ultimate contestations as they appeared in the final decisions by the Court. I see the Court as engaging with a …