Canadian police officers were not justified in using a Taser gun on a Polish immigrant at Vancouver airport, an inquiry has found.
Robert Dziekanski, who did not speak English, died after being stunned five times with a Taser in 2007.
British Columbia’s attorney general said a special prosecutor would examine the possibility of criminal charges against the four officers involved.
The case sparked outrage across Canada.
Mr Dziekanski, 40, was a first-time traveller who had been emigrating to Canada, where his mother lived.
He disappeared for several hours at Vancouver airport, and grew distressed when he was told by an official that his mother was not there.
Airport workers called police after he threw a computer and a chair.