Who is Jamie Bryson's source?
DURING the course of his cross-examination by MLAs yesterday, Jamie Bryson was asked - but point-blank refused - to identify who was feeding him much of the allegations he presented to the committee.
He said would "rather go to jail" than reveal his sources, which he "stood over 110 per cent".
"I am giving relevant information to this committee which sources, extremely close and involved in this nefarious deal, have provided to me as whistle-blowers," he said.
"I am not in a position to breach somebody's confidence before this committee."
So who might the sources be?
There has been some speculation that information has been filtering through a disaffected member - or members - of one of the north's main political parties.
Mr Bryson is also thought to have at least one well-placed contact within a legal firm and a bank in Belfast, while a number of businessmen seemingly with axes to grind have also been in touch with him and some media outlets with what they deem to be important and relevant information.
Writing on his blog last night, he said he stands over all the allegations made before the committee.
He wrote: "We have heard unambiguous denials from Peter Robinson before, along with threats to sue.
"If he is so certain my evidence will not stand up to scrutiny then there is a clear path through the courts for Mr Robinson to initiate legal proceedings and prove my allegations as false."