from Maher Arar's website
Maher's Story in Brief
Maher Arar is a 34-year-old wireless technology consultant. He was born in Syria and came to Canada with his family at the age of 17. He became a Canadian citizen in 1991. On Sept. 26, 2002, while in transit in New York’s JFK airport when returning home from a vacation, Arar was detained by US officials and interrogated about alleged links to al-Qaeda. Twelve days later, he was chained, shackled and flown to Syria, where he was held in a tiny “grave-like” cell for ten months and ten days before he was moved to a better cell in a different prison. In Syria, he was beaten, tortured and forced to make a false confession.
During his imprisonment, Arar's wife, Monia Mazigh, campaigned relentlessly on his behalf until he was returned to Canada in October 2003. On Jan. 28, 2004, under pressure from Canadian human rights organizations and a growing number of citizens, the Government of Canada announced a Commission of Inquiry into the Actions of Canadian Officials in Relation to Maher Arar.
Here is the Commissioner's report. It's long, but it has a table of contents http://www.ararcommission.ca/eng/AR_English.pdf
On September 18, 2006, the Commissioner of the Inquiry, Justice Dennis O'Connor, cleared Arar of all terrorism allegations, stating he was "able to say categorically that there is no evidence to indicate that Mr. Arar has committed any offence or that his activities constitute a threat to the security of Canada."