The "18 year old business student" should read this full judgement (which I have):
http://news.bbc.co.uk/1/shared/bsp/hi/pdfs/judgment.pdf
(It may no longer still be available via the BBC)
It describes the judgement handed down by Election Commissioner Richard Mawrey, who sat as a judge in the High Court. He described an “alarming state of affairs in Tower Hamlets” driven by the “ruthless ambition of one man”.
Mr Mawrey said Rahman had "driven a coach and horses" through local authority law and had been an “evasive witness”.
This was not "some brown guy" whom the authorities did not like running things. This was a man who had systematically contravened election law in many respects and this was not the first occasion. They were offences which the police had declined to investigate and which took the actions of four local residents (including one Muslim) to bring to book - at considerable financial risk to themselves.
I wish Ms Khan well in the fresh election. If she garners sufficient votes to win good luck to her. But I hope he does not adopt the same tactics as Mr Rahman or she may well find herself kicked out in a similar fashion.