Controversial assisted dying activist Dr Philip Nitschke, dubbed 'Dr Death', will perform at the Edinburgh Fringe festival using his euthanasia machine. Dr Nitschke will ask his audience - some of whom may be terminally ill - to try his 'Destiny' machine, to show them 'a peaceful and reliable means of death'. His apparatus is a version of the Deliverance machine he used in Australia, where he successfully campaigned to have a legal euthanasia law passed in the 1990s. At the time he helped four terminally-ill people end their lives. The law was overturned in 1997 by the Australian parliament. Last month police questioned Dr Nitschke amid concerns about the show's content. He was eventually cleared to perform at the Fringe throughout August. With seven days until his show opens, Scottish lawyers have been appointed to ensure he does not breach laws on advising, counselling or assisting others to commit suicide.