Robert Dziekanski, an immigrant from Poland, died Oct. 14 after being stunned with the electric shock weapon. The incident was recorded on video.

The video shows that Dziekanski, who apparently became agitated after waiting at the airport for several hours for his mother to meet him, was not a danger to anyone else. Dziekanski was shocked twice and the four Royal Canadian Mounted Police officers then restrained him face down, with two of them kneeling on his neck and back.

The British Columbia police complaint commissioner said in 2005 that police should only use Tasers on people who pose a threat to others or were actively resisting arrest, The Vancouver Province reported. The report said there should be no multiple shocks, and after using a Taser police should be careful not to restrain subjects in any way that would impede their breathing.

A woman who witnessed the incident told the Toronto Globe & Mail that Dziekanski's agitation appeared to be a product of language difficulties and that an interpreter would have been able to calm him down.