"CANADIAN police are under fire after a tourist's video showing the dramatic last moments of a Polish construction worker.

Robert Dziekanski, 40, of Pieszyce, Poland, was shown to have died after police shocked him with a Taser stun gun at Vancouver's airport last month.

Mr Dziekanski was on his first plane trip to see his mother, whom he wanted to live with after migrating to Canada.

After waiting 10 hours for her after a mix-up, he apparently panicked. He died within minutes.

In the video, Mr Dziekanski, who spoke no English, appears frightened and exhausted, and speaks to himself in Polish. Agitated, at one point, he throws a computer to the ground.

Four policemen surround him. One says, "How are you, sir?"

He appears to turn his back on them, trying to move away.

A policeman hits him with a Taser; he screams, falls, and writhes as the police pin him down.

Seconds later, he is seen lying still.

Police had originally taken a tourist's video recording; he went to court to get it back."