OTTAWA (Reuters) - Senior Canadian military and government officials ignored evidence that Afghan authorities were torturing detainees handed over by Canada's troops and then tried to silence those who raised the alarm, a senior diplomat said on Wednesday.
Richard Colvin said many of those arrested by the Canadian military were innocent and the practice of handing over prisoners knowing they could be abused was a war crime.
The startling public allegations -- the first of their kind from a senior official -- is likely to embarrass the minority Conservative government, which has insisted detainees were not passed to Afghan control if there was any danger of torture.
Canada has 2,700 soldiers in the southern Afghan city of Kandahar on a mission that is due to end in 2011.
Colvin, who was Canada's top representative in Kandahar for much of 2006 and 2007, said he had started sending reports in early 2006 to senior Canadian military and foreign ministry officials indicating members of the Afghani National Directorate of Security (NDS) were abusing detainees.
"For a year and half after they knew about the very high risk of torture, they continued to order military police in the field to hand our detainees to the NDS," he said in testimony to a House of Commons committee on Afghanistan.
Colvin's comments came at a sensitive time. So far 133 Canadian soldiers have died in Afghanistan and recent polls indicate most Canadians oppose the mission.
Colvin lashed out at Canadian military leaders in Afghanistan, saying they "cloaked our detainee practices in extreme secrecy." refused to hand over details of prisoners to the Red Cross in a timely fashion and kept "hopeless" records.
"As I learned more about our detainee practices, I came to the conclusion that they were ... un-Canadian, counterproductive, and probably illegal," he said, adding that senior officials in Ottawa initially ignored his reports.
"By April 2007 we were receiving written messages from the senior Canadian government coordinator for Afghanistan to the effect that we should be quiet and do what we were told," he said.
Canadian troops first began transferring detainees to Afghan authorities in late 2005.
Eventually, faced with persistent stories and allegations of abuse, the Canadian government signed an agreement with Kabul in May 2007 to increase protection for detainees.
Colvin said Canadian troops detained six times as many Afghans as the British, who were also operating in southern Afghanistan.
Although some of those arrested may have been Taliban foot soldiers, many were "random human beings in the wrong place at the wrong time." He added: "We detained and handed over for severe torture a lot of innocent people. ... Complicity in torture is a war crime."
In all, Colvin sent more than a dozen memos to a raft of senior officials in Ottawa and Afghanistan about abuses.
"In April 2007 Prime Minister Stephen Harper said publicly that Canadian military officials don't send individuals off to be tortured. That was indeed our policy. But behind the military's wall of secrecy that unfortunately exactly what we were doing," he said.
Reporting by David Ljunggren; Editing by Frank McGurty