I have just been watching the programme on the shooting dead of Garda Dick Fallon in Dublin in 1970 following a bank raid.
Dick Fallon's son has now stated that the records and papers relative to the shooting of and investigation into the murder have not been released by the Garda authorities or the government.
He attributes the refusal to release the documents to collusion between the then government and a gang known as Saor Eire.
He alleges the then government colluded with Saor Eire in bringing arms into the country and into Northern Ireland and that one of the guns so imported was used in the killing.
This is not a new revelation but nevertheless it is a very serious accusation and one that requires immediate clarification.
It should be noted that this murder was in the same era as the arms trial.