Oops !

you're quite right rancegal ! - and i should know better !

I actually got into a very protracted debate on another forum, many having differing views on the subject, and all heartfelt - it did get very very heated ! It's a very emotive subject for sure.
I've read some of the Courts Martial papers relating to some of the shot at dawn cases, and as you say the subject provokes strong emotions.
My view point has always been that whether or not they were guilty by the standards of military Law at the time, at least in the cases of those who were executed you'd be hard pushed to find even by considering the standards of military law at the time, anything that resembled a fair trial.

There are though some cases which on the face of it ( by the standards of military law then ) were correctly brought before the courts, it's the manner in which they were prosecuted that i've always had issue with.
Below i've pasted a link to the video of a lecture on the subject of Harry Farr that you might find interesting.
The Lecture is given by Professor Simon Wessely at Gresham College.
It is in my opinion a very objective view of the whole sorry case. you can also download the video from the page.
http://www.gresham.ac.uk/lectures-and-events/shell-shock-or-cowardice-the-case-of-harry-farrLet me know what you think.
Standfast