Once again the usual warning. There is some vile stuff in this file.
It goes without saying that if these are not fabrications, that's the end of Slipper. I should add that the case in which these texts have been submitted in evidence is still going on, no decision had been made and thus no judgement has been made on the truth or otherwise of this evidence.
That said you will be the judge in reading the affidavit material and seeing the source of the texts.