Prime Minister Gordon Brown in Luton town centre on October 3 unveiling a memorial to hero policeman PC Jon Henry, who was killed on duty in the town centre last year.

Mr Brown told a crowd of about 150 in George Street, where PC Henry was stabbed: 'There is no man more courageous than the man we remembering today who gave up his life in service.'

Click here to see a video of the Prime Minister's tribute

Chief Constable of Bedfordshire Police Gillian Parker said: 'If it was difficult for us, how much more difficult was it for Mary, Jon's parents, his sisters, brother and other family and friends. Meeting them all hours after Jon had died, it struck me that despite their grief there was no anger at the police force. The message that came across that day was that Jon Loved his job. I continue to admire your dignity from the start despite your deep loss.'

The ceremony was the brainchild of the Police Memorial Trust, which was set up by film director Michael Winner, who said: 'When you hear people say the police are never there, tell them about Jon Henry. He was there.'

Jon's wife, Mary, said how she felt supported and drew strength from the number of cards, letters, flowers and gifts given by people who knew Jon and those who did not.

Last weekend Mary attended the annual National Police Memorial Day in Liverpool. Mary handed over on behalf of the nation and officers everywhere, the scroll containing the list of fallen officers to event patron Prince Charles.

PC Henry had joined the force in Luton, his home town, where he had been born and raised. He was just 36 years old.

For the full story, buy the October 8 edition of the Luton News, at all good newsagents, priced 45p.