Is it true that red light cameras only start capturing 3 seconds after the light turns red?

[OJourney]

Red light cameras do not start capturing only 3 seconds after the light turns red. When the red light is on, the electronic police shooting system is already in working state. Here is relevant information about running red lights: 1. Six situations of running red lights: stopping immediately after crossing the line at a red light; running a red light under traffic police command; stopping after the entire vehicle body crosses the line at a red light; reversing after stopping beyond the line; 'accidentally' running a red light behind a large vehicle; passing through an intersection when the light turns yellow. 2. Penalty rules: Regardless of the reason, any illegal act of running a red light will be punished according to law. To determine that a vehicle has run a red light, three photos are required as evidence. On October 8, 2012, the Ministry of Public Security revised and issued the 'Regulations on the Application and Use of Motor Vehicle Driving Licenses', increasing the penalty points for violations such as disobeying traffic signal lights from 3 points to 6 points.