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Brazil in cash-for-guns amnesty
Brazil has the world's fourth-highest murder rate
The Brazilian government is offering to buy guns from its citizens as part of an initiative to reduce violent crime.
Payments will range from $33 for a pistol to $100 for an assault rifle.
Anyone can hand in a weapon before the end of the year without fear of being questioned or charged with illegal possession.
According to the United Nations, Brazil has the world's fourth-highest murder rate, with 40,000 gun-related murders last year.
Successful pilot
The Brazilian government says it will invest $3.3m in the scheme between now and December, with the aim of taking 80,000 guns off the street.
There is some concern that the policy will financially benefit those involved in illegal gun crime, says the BBC's Steve Kingstone in Sao Paulo.
But disarmament campaigners dismiss such fears, saying hardened criminals will have no interest in handing in weapons, and that the measure is really targeting honest citizens who may own antique firearms or small guns without a proper license.
The scheme was successfully tested in the state of Parana where, in the space of five months, the authorities collected 20,000 weapons - and there was a 30% fall in gun-related murders.
Rules tightened
This is the latest step in the government's attempt to reduce violent crime.
A law passed last December, which came into force earlier this month, banned the carrying of guns in public.
It also tightened rules on gun permits and created a national firearms register, with strict penalties for owning an unregistered gun.
Only strictly defined groups of people - including police, security officials, target shooters and transport companies - are now able to obtain a gun licence.
A referendum will be held in 2005 on whether to ban gun sales outright.
The legal age for owning a gun is being raised from 21 to 25.
Brazil's arms industry is the world's sixth largest, and strong lobbying has in the past blocked many changes to the law.
