The media world will be watching Cwmbran man Steven Nott and listening to every word he says on Tuesday. The 44 year-old from West Pontnewydd will be giving evidence under oath at the Leveson inquiry.
His story revolves around his attempts to raise awareness of phone hacking since 1999.
He is giving evidence on the same day as Guardian journalist David Leigh.
This is the link to the official Leveson inquiry website