The Libyan authorities have appointed prosecutors regarding the Lockerbie bombing.
The Lord Advocate made the announcement in the run-up to the 25th anniversary of the tragedy which claimed 270 lives.
Memorial Services will be held in Lockerbie and Westminster Abbey - and at Arlington Cemetary in America on Saturday.
The Lord Advocate admits the slow progress of the investigation is frustrating but told ITV Border's Peter MacMahon that Scotland's police will pursue the case, with Libyan help.
More top news
Woman was attacked in Carlisle park and had a knife dragged down her neck
One of walkers said to have been rescued from Scafell Pike after smoking cannabis has given his account of the incident
Cumbria's NHS Trusts are joining forces to vaccinate more staff than ever against flu in preparation for winter.