Article from: www.thenewspaper.com/news/00/27.asp
After receiving a speedcam ticket, a New Zealand man didn't just assume that the machine is always right. He requested the "dump sheet" that shows the times and speeds of cars passing the camera. He noticed this sheet didn't match what was printed on his ticket -- and that it was a car ahead of him that had exceeded the limit. The fine was waived, but police still maintain he was speeding and the machine wasn't wrong.Mr Burgess is not satisfied with the official police explanation.Source: LEVIN MAN'S QUESTIONS ABOUT SPEED PAY OFF (New Zealand Press Association, 12/9/2004)
It doesn't hold water with me. I can't tell you what speed I was doing because I got the ticket two weeks later.''