Al Jazeera's Nick Spicer reports on Canada's security laws that have led to the detention of several Muslims.
Canada's "security certificate" law allows the Government to detain non-citizens or put them under house arrest without charge.
Following the September 11 attacks on the United States, neighbouring Canada used a long-standing legal mechanism to detain several Muslims.
Years later those men, such as Mohammed Harkat, are still living uncertain lives.
