Interesting evidence so far from the defence about visibility at Hamilton Square. The defence witness, MR's head of Customer Service [trains] (basically the overall manager of all MR's guards), states Dodd did exactly what was expected, accepts that the injured passenger would not have been visible, accepts that the front carriage doors would not have been visible, and highlights how a guard would need to turn their back on the monitors to operate the door controls.
Zee's defence team so far appears to be competent and well-resourced, even using a 3D-imaging system to illustrate lines of sight.