Lawmakers proposed allowing the sale of marijuana within Mexico City. The local legislature controlled by the leftist Democratic Revolution Party is the most liberal in Mexico and has previously legalized abortion and gay marriage. Mayor Miguel Angel Mancera supports the plan. Approval could force a legal showdown with the federal government, which would have to decide whether to effectively override the local law by enforcing federal laws barring drug trafficking, challenging the city law in the courts, or both. (See also: Mexican officials introduce bills seeking to relax marijuana laws)
In August 2009, Mexico adopted a new law against small-scale drug dealing, which introduces some significant advances in key subjects, such as the recognising of and distinguishing between user, drug addict and dealer. However it still has significant flaws in continuing to treat demand and supply of drugs as a criminal and market phenomenon that are likely to undermine its successful application.