A public inquiry into the murder of Capt. Robert Nairac in 1977 is being demanded by an English-born woman of Irish parents who says she had a four-year relationship with him and is the mother of his son.
Ms Oonagh Mary Flynn has claimed to The Irish Times that the murder was set up by British intelligence.
She intends travelling to Dublin shortly to meet an official in the Department of Foreign Affairs to hand over tapes, transcripts and negatives of what she knows about the circumstances of Capt. Nairac's death.
A spokesman for the Department yesterday confirmed the meeting is due to take place. He said any information would be evaluated, and any relevant details handed to the Independent Commission for the Location of Victims' Remains, when it is established.
"We will approach everything with an open mind. Capt. Nairac was involved in lots of activities, he is obviously one of the disappeared, and anything that is relevant will, of course, be handed over to the commission."
The details of Capt. Nairac's murder and the disputed location of his body - one theory is that the IRA disposed of it in a meat processing machine at a plant in Co Louth - have been the subject of several books and articles documenting what became known as the "dirty war".
Ms Flynn claims his murder was set up when he began asking too many questions "about the RUC's shoot-to-kill policy".