Starts at 13.38 in....
For those of you not able to access this there is not much we don't already know. One interesting aspect was that Bolton admitted there was no scientific basis for how the GT200 'worked'. Apparently he claimed that you have to see it in operation.
The report emphasises that the decision the jury have to make is whether Bolton knew the device did not operate as he claimed. All the evidence confirms that, like the other variants e.g. the ADE651 and Alpha 6, the GT200 can not and does not detect anything, let alone explosives.