Your going to love this:
http://www.zdnet.com.au/glitch-hits-...-339306651.htm
Basically they discovered that one of the point to point cameras (aka, they time how long it takes to travel between two cameras) did not have its clock synchronised for 4 years, and has been wrongly issuing tickets.
New Zealand is looking at deploying this same camera technology.
So obviously there was no procedure to calibrate and check the cameras.
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