Fourteen people were killed by British paratroopers on Bloody Sunday.
The judicial review undertaken by some of the relatives of those murdered on Bloody Sunday dead has begun in Belfast.
The review is challenging the decision by the Public Prosecution Service not to prosecute any other soldier apart from Soldier F for their actions on January 30 1972 and the more recent decision to discontinue the prosecution of Soldier F.
Opening for some of the relatives, Karen Quinlivan QC argued that the decision by the PPS to rule that various accounts given by soldiers in 1972 would be ruled inadmissible in a criminal court was flawed.
She said that on Bloody Sunday 108 live rounds were fired and no one was doing anything that would have justified that firing.
The hearing was told that there was an agreement in place at the time between the Chief Constable of the RUC and the GOC of the British Army that incidents where lethal force was used by the British Army they would be investigated by the Royal Military Police.
Ms Quinlivan said that soldiers were 'interviewed as witnesses not suspects.'
She said they were not cautioned nor were they legally represented while making these statements.
Lord Justice Maguire said that the fact the RUC were not involved and was 'not a great investigative vista.'
The barrister told the hearing that the interviews by the RMP were 'amicable' and a senior officer was present.
She argued that the intention behind this scheme was to 'protect' soldiers not to convict them.
The hearing continues and is scheduled to last a week.
Subscribe or register today to discover more from DonegalLive.ie
Buy the e-paper of the Donegal Democrat, Donegal People's Press, Donegal Post and Inish Times here for instant access to Donegal's premier news titles.
Keep up with the latest news from Donegal with our daily newsletter featuring the most important stories of the day delivered to your inbox every evening at 5pm.