How do red light cameras work?

Radar technology monitors an approaching vehicle's position and speed as it nears the white stop line at an intersection. If an approaching vehicle is exceeding a preset threshold speed prior to the intersection and the traffic signal is red, the camera system will initiate a photograph sequence. The camera first captures a wide-angle photograph of the vehicle before it enters the intersection with the traffic signal clearly illuminated red. Shortly thereafter, the camera captures another photograph of the vehicle in the intersection with the traffic signal still illuminated red. The license plate image is obtained from one of the high resolution photographs.  The red light cameras utilize a flash to enhance the photographs and license plate.  The camera systems also use full-motion video clips to supplement the photographs printed on a red light camera citation. A multi-step review process occurs prior to issuing each and every citation and it is ultimately trained Hagerstown Police personnel who make the final determination if the criterion to issue a citation was met.

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1. How do red light cameras work?
3. What does a red light camera look like?
10. What information will be displayed on the citation?
12. Can I dispute the citation?