If you read pages 48 through to 59 of Davison's COLP interview he is asked firstly would he have recorded the handing over of the paint sample in his pocket book, to which he answered that he wouldn't if he was using CID6's. Later he is asked specifically whether or not he had recorded the handover in his pocket book and he says no.
His assertions that the paint sample was handed to him at the scene, and that it was taken because of paint being found on the barrel of a gun found downstairs do, of course, create further questions, but he's speaking from memory 6 years later. It might help if we looked at Davison's statement from 1985, is it here?
There were two CID6 forms, CID6.10 and CID6.11. CID6.10 was dated 08/08/85 and Davison thought that CID6.11 was a continuation of CID6.10. When he filled in his HOLAB form with the date 08/08/85 he took it from the top of CID6.10. It was pointed out to him during his COLP interview that on CID6.11, above the entry for the paint sample were seven items listed as having been found on 09/08/85. He could not tell from the CID6's and could not remember what actual date the paint sample was taken.