Fire ravaged Art School inquiry investigation delayed yet again
They have now said work on the site is expected to take another six months.
The blaze took hold as the building was nearing the end of a £35 million restoration following a previous fire in May 2014.
Investigators have examined two parts of the building following the removal of 400 tonnes of charred wreckage, according to the Scottish fire service.
They have also scoured hundreds of hours of CCTV footage and taken witness statements.
But before the final stages of the investigation can take place, more debris needs to be taken away from the “complex site”.
The art school announced that the Scottish Fire and Rescue Service investigations would begin on 24 February and were forecast to last about 24 weeks.
Prof Alan Dunlop, one of the UK’s leading architects and a Fellow of the Royal Incorporation of Architects in Scotland, said: “The delays in investigation are certainly extreme but it is far better to have a forensic examination that at least offers the potential for establishing accountability.”