Mexico City’s historic center. Photo via Luis A. De Jesus R.

President Calderón finally signed a law decriminalizing possession of small amounts of drugs yesterday, four months after Mexico’s congress approved it. This law, while viewed by many as controversial, is not a surprise: it was even proposed by ex-president Vicente Fox, before he vetoed it under pressure.

See news coverage from the AP, and in Spanish from El Universal. Also, policy analysis from Mexico’s Instituto Nacional de Ciencias Penales (in Spanish), and the UK-based Transform Drug Policy Foundation.