Grenadier Guards Captain Robert Nairac in 1977 (Picture PA).
A forensic archaeologist has said there are no indications that an area in a forest near the Irish border was the burial site of former British Army Captain Robert Nairac.
An examination was carried out on Tuesday by a commission responsible for locating those abducted and killed by the IRA during the Troubles.
The Army Captain was abducted by the IRA during an undercover operation in a bar in South Armagh in 1977.
The search comes after a former British Army soldier said that a specialist dog trained to locate human remains had identified ground in Ravensdale Forest close to the border.
Alan Barry has been trying to locate Capt Nairac's body and first identified the area using a psychic medium.
After examining the area, the Independent Commission for the Location of Victims' Remains (ICLVR) said the wooded area was not and has never had been a gravesite.
The ICLVR's lead forensic scientist and investigator Geoff Knupfer said: "If the subsurface had been disturbed by a spade or any other device or implement cutting into it to bury remains we would have seen clear evidence of that.
"There was none. The subsurface was pristine. It was never a gravesite."
Capt Nairac was one of 'the Disappeared', 16 people that were abducted and murdered by republicans during the Troubles.
Most had been wrongly accused of being informers to the state.
Mr Knupfer added: "In the last five years, we have conducted four substantive searches and recovered the remains of four of the Disappeared."
Anyone with information relating to the whereabouts of the remains of Columba McVeigh, Joe Lynskey or Robert Nairac is asked to contact CrimeStoppers on 0800 555 111 and the untraceable anonymous online form is at crimestoppers-uk.org.