This article challenges the justification usually offered by the Inter-American Court of Human Rights for its broad use of external sources when engaging in evolutive interpretation of the American Convention on Human Rights (ACHR). It analyses the Court's jurisprudence concerning international humanitarian law, the rights of the child, and lesbian, gay, bisexual, transexual and intersex (LGBTI) rights, in addition to drawing on interviews conducted with lawyers of the Court. It argues that the discursive strategy used by the Court to justify its ‘import’ of external sources fails to provide a complete normative justification and remains open to the charge of ‘cherry-picking’. The article recommends that the Court tailors its discursive strategy to the specific type of external sources used and suggests that more attention be paid to searching for internationalized consensus when determining the relevance of non-binding sources to evolutive interpretation of the ACHR.
