THE surveillance of the three Duffys was considered by legal experts to be of “unprecedented size and complexity”.
Key prosecution evidence contained a presentation which ran to 53 hours and included the products of vehicle tracking and covert listening devices.
Large volumes of papers were also given to defence solicitors.
A single CD disclosed 87 separate clips of conversations recorded in two cars in which bugs had been planted.
The clips translated to a total of 22 hours of covert recordings.
It has also emerged that Prison Service vehicles used to transfer the three men were bugged by state agencies.
The van recordings amounted to between 8 and 9 hours for each of the men and totalled around 26 hours, with the transcripts running to 37 pages.
However, it is understood the state gained “nothing of evidential import” from these recordings.
Defence solicitors were also given around six hours of aerial footage, which may have been captured by drones or helicopters.
The trial was due to hear evidence from experts in England, Wales, Australia and America.
The experts would have concentrated on voice identification evidence, 'discourse analysis evidence' and evidence of counter and anti-surveillance methods as well as vehicle tracker evidence.
