"A Historical Enquiries Team investigation into the killing of Joe McCann found it was unjustified. The report stated: "The HET considers that Joe's actions did not amount to the level of specific threat which could have justified the soldiers opening fire in accordance with the Army Rules of Engagement or their standard operating procedures." - Courtesy of Steve Shaw

What a great pity then Shaw that the HET team will not be in the Jury empanelled to hear the case. Should any attempt be made to influence that Jury the trial will be halted and moved. Former legal precedent is on the side of the defence irrespective of what the HET view on it was.

GSS to answer your question in the early years of the "Troubles" I was in Northern Ireland twice. And as far as knowledge and understanding I'd say I am a damn sight better qualified and experienced than you to comment - All your information seems to be at second-hand.