A fight over abortion between Mexico's federal government and the capital's leftist lawmakers goes to the Supreme Court next week, with the attorney general urging judges to reinstate a ban on women terminating pregnancies on demand.
The Catholic Church, a powerful force in the world's second-biggest Catholic country, backs the federal government's call to overturn a 2007 law allowing abortions in Mexico City.
But the capital's administration, headed by Mayor Marcelo Ebrard, says women have a right to safe abortions rather than risking their lives in unhygienic back-street clinics.
One of the court's 11 judges, Salvador Aguirre, has already submitted a ruling which says the Mexico City law is unconstitutional.
"The right to life recognized by the constitution remains protected from the moment of conception," Aguirre wrote.