For someone whose Forum Profile gives their occupation as 'Motorsport Researcher and aspiring Author', may I suggest you do some further research regarding the use of the Red Flag.
Unless there has been a fundamental change in the regulations in the very recent past, it is still the case that - in the UK at least - Race Control are the only ones with authority to call for a Red Flag.
Although each flag post does indeed have a red flag, they are not permitted to display it without permission from Race Control, either via radio or via post-to-post visual transmission initiated from display of the red flag at the Start/Finish line.
Any flag marshal who displayed the red on their own initiative would need to have a very persuasive argument as to how/why it happened, when they received the inevitable invitation to attend Race Control.
Maybe my words and their meaning were in something up to the waywards when they were meant to be for another purposes.
I just meaned that in older times there was different views for a complete race stops, less equipment and many other hindering things which of course were providing mostly non-stop racing even in potentially disturbing instances of the lethal crashes.
And in some instances Race Control and Clerk of the Courses had their differences about the matter and situation get better eventually up from the 1970s.
And of course in different countries they had their own laws for some things in motorsport.
I remember only one instance where marshall actually displayed red flag on their own initiative and if I'm not mistaken dearly, it was in the 1997 Argentine Grand Prix.
That one of course is for the F1 side of motorsport.
Edited by Blue6ix, 22 August 2019 - 08:00.