
Q Radio News
The latest dig for the remains of one of the disappeared - is proving to be one of the most challenging ever - undertaken by experts.
After two weeks of digging in County Monaghan bogland - the fifth search for Columba McVeigh is entering a new phase.
The 19-year-old from Donaghmore in County Tyrone, was abducted, shot and secretly buried by the IRA in 1975.
Here's senior investigator Jon Hill- from the Independent Commission for the Location of Victims Remains.