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On a related topic, let me express how I think the infraction works and then someone can either confirm or correct.

I believe the red light infraction happens when you ENTER the intersection and it is red. If you are past the intersection white stop line so that you are partially or fully in the intersection before the light turns red, then you lawfully exit and clear the intersection.

One example would be sitting in the middle of the intersection while the light is green waiting to make a left turn. If you are waiting for a long line of oncoming traffic to clear, I have often had the light turn red while I was sitting there and was only able to turn left and clear the intersection when the oncoming traffic stopped for the red light.

At the other extreme, I believe that if your car enters the intersection on yellow, even if the front bumper is just a foot past the white stop line before the light turns red, then you can legally clear that intersection and it is not a red light infraction. However, if the light turns red BEFORE you cross that line into the intersection, then that is a legitimate red light infraction.

Now, if we are talking about a human being, an LEO, observing the vehicle enter the intersection and testifying the exact position when the light turned red, there is room for human variation and honest differences in perception. However, a red light camera should be able to remove that ambiguity. There should be a photo of the light already red before the vehicle crossed the line to enter the intersection.