Channel 4 News has just run a piece with a doorstep interview with Janet Dunn, who was used by Abraham to donate £25,000 on January 31, 2003. She said that she has no knoweldge of the donation and said, whilst standing with her husband, "we have always been Conservative supporters".
That changes the allegations a little doesn't it? If Janet Dunn is telling the truth the implication is that someone used her name without her permission to make an illegal donation to the Labour Party. So we don't just have an illegal donation, we have potential identity theft too.
Update: Quick update, apparently the husband made a statement last night saying that Abraham's had called them and told them to check their bank statements. It seems Abrahams paid £25K into their account and they gave him a blank but signed cheque for the amount but they had no idea what it was all about.