The last twenty years recorded the proliferation of the competition law regimes in several emerging economies. The article explores the issues related to the involvement of the judiciary in the enforcement of the competition law in the developing countries, taking Brazil as a case study. During the last years the Brazilian competition authority (CADE) pursued an active enforcement policy against cartels and other forms of anti-competitive conducts. Consequently, a large number of appeals against CADE’s decisions were initiated in the Brazilian federal courts. The slowness of the Brazilian judicial system and the lack of understanding of competition law by the Brazilian courts has hampered the enforcement policy of CADE. A number of initiatives have been adopted in the country in order to solve these issues. The article critically analyzes these initiatives, and in the conclusion it proposes a number of policy lessons for other emerging economies.