Green was unlucky that the police seized his computer in 2008 as part of an investigation into Home Office leaks requested by the Cabinet Office. Green was not charged with any offence at that time, and there is no suggestion that he was viewing illegal porn.
His problem now it that he can't...
What is a red-blooded male MP supposed to do? If you touch or speak inappropriately to a female colleague you're in the sh1t but if you curb your behaviour and knock on out over Jenna Jameson on XHamster you're still in the sh1t.