Landmark Cases
ADI 4277 — Same-Sex Marriage
Introduction ADI 4.277 (Ação Direta de Inconstitucionalidade 4.277), decided jointly with ADPF 132 on May 5, 2011, is the landmark decision in which the Supreme Federal Court (STF) recognized same-sex …
ADPF 130 — Press Law Unconstitutionality
Introduction ADPF 130 (Arguição de Descumprimento de Preceito Fundamental 130), decided by the Supreme Federal Court (STF) on April 30, 2009, is one of the most important decisions on freedom of …
ADPF 54 — Abortion of Anencephalic Fetuses
Introduction ADPF 54 (Arguição de Descumprimento de Preceito Fundamental 54) is a landmark decision of the Supreme Federal Court (STF) that decriminalized the termination of pregnancy in cases of …
HC 124306 — Unconstitutionality of Automatic Pre-Trial Detention
Introduction HC 124.306 (Habeas Corpus 124.306) is a landmark decision of the Supreme Federal Court (STF) regarding the scope of the presumption of innocence (presunção de inocência) and the …
HC 143641 — House Arrest for Pregnant Women
Introduction HC 143.641 (Habeas Corpus 143.641) is a landmark decision of the Supreme Federal Court (STF) recognizing the right of pregnant women and mothers of young children to house arrest (prisão …
MS 26603 — Impeachment of Dilma Rousseff and Separation of Powers
Introduction MS 26.603 (Mandado de Segurança 26.603) is a pivotal decision of the Supreme Federal Court (STF) concerning the impeachment process of President Dilma Rousseff in 2016. The case addressed …
RE 574962 — ICMS Exclusion from PIS/COFINS Base
Introduction RE 574.962 (Recurso Extraordinário 574.962), with General Repercussion Theme 190, is one of the most significant tax law decisions of the Supreme Federal Court (STF). Decided in 2017, the …
RE 878694 — Unconstitutionality of Paternity Denial
Introduction RE 878.694 (Recurso Extraordinário 878.694), with General Repercussion Theme 649, is a landmark decision of the Supreme Federal Court (STF) regarding the constitutional prohibition of …