MEXICO CITY (Reuters) - Possessing marijuana, cocaine and even heroin will no longer be a crime in Mexico if the drugs are carried in small amounts for personal use, under legislation passed by the Mexican Congress.
The measure given final passage by senators late on Thursday allows police to focus on their battle against major drug dealers, the government says, and President Vicente Fox is expected to sign it into law.
"This law provides more judicial tools for authorities to fight crime," presidential spokesman Ruben Aguilar said on Friday. The measure was approved earlier by the lower house.
Under the legislation, police will not penalise people for possessing up to 5 grams of marijuana, 5 grams of opium, 25 milligrams of heroin or 500 milligrams of cocaine.
People caught with larger quantities of drugs will be treated as narcotics dealers and face increased jail terms under the plan.
The legal changes will also decriminalise the possession of limited quantities of other drugs, including LSD, hallucinogenic mushrooms, amphetamines and peyote -- a psychotropic cactus found in Mexico's northern deserts.
Hundreds of people, including several police officers, have been killed in the past year as drug cartels battle authorities and compete with each other for control of lucrative cocaine, marijuana and heroin smuggling routes from Mexico into the United States.
The violence has raged mostly in northern Mexico but in recent months has spread south to cities like vacation resort Acapulco.
Under current law, it is up to local judges and police to decide on a case-by-case basis whether people should be prosecuted for possessing small quantities of drugs, a source at the Senate's health commission told Reuters.
"The object of this law is to not put consumers in jail, but rather those who sell and poison," said Sen. Jorge Zermeno of the ruling National Action Party.
Fifty-three senators voted for the bill with 26 votes against it.