In Brisbane, two construction workers have died a terrible death, crushed by a nine-tonne concrete panel. They had no means of escape as the panel crashed down, caught at the bottom of a pit, with no emergency exit and nowhere to run.

The panels were being erected without a safe work method statement. Elementary precautions were absent. In fact, anyone wanting to design a way to kill people could simply follow this procedure. Their workmates saw them die. The horror will never leave them. They will carry the image and memory of…