"Ali" said he had taken part in attacks on Darfur villages after they had
been bombed by the Sudanese air force.
He said he had seen ministers at training camps for the pro-government
Khartoum has always denied any links to the Janjaweed, who have been
accused of war crimes against civilians in Darfur.
More than two million people have fled their homes during the
A man identified only as "Ali" told the BBC's Newsnight programme that
Sudanese ministers gave express orders for the activities of his unit, which
included rape and killing children.
"The Janjaweed don't make decisions. The orders always come from the
government," he said.
"They gave us orders, and they say that after we are
trained they will give us guns and ammunition."
"Ali" - who is now seeking asylum in Britain - said the men who had
trained them were wearing the uniforms of the Sudanese military, adding that
Interior Minister Abdul Rahim Muhammad Hussein was a "regular visitor".
The former fighter said the majority of the victims were civilians,
mostly women, and also talked of "many rapes" committed by the Janjaweed.
"Whenever we go into a village and find resistance we kill everyone,"
he said, but denied that he personally killed or raped civilians.
Hilary Benn, a British government minister who visited Darfur on
Monday, said the man's evidence was "clearly very serious".
Mr Benn urged him to speak to investigators from the International
The conflict began in the arid and impoverished region after a rebel
group began attacking government targets, saying the region was being neglected
The rebels say the government is oppressing black Africans in favour of
Khartoum has always denied backing the Arab militias, saying the
problems in its rebel Darfur region are being exaggerated for political reasons.
President Omar al-Bashir has called them "thieves and gangsters".
After strong international pressure and the threat of sanctions, the
government promised to disarm the Janjaweed.
But so far there is little evidence this has happened.
In the meantime, the civilized nations of the world do nothing.