An author who has argued for assisted suicide has been appointed adviser to the Holyrood committee scrutinising MSP Margo MacDonald's bill calling for sick people to be given the right to die. Pro-life campaigners are angered by the appointment of Alison Britton, the co-author of The Case For Assisted Suicide, to her position as the committee's only adviser and sought assurances that she will be impartial. If passed by the parliament, MacDonald's highly emotive bill could see terminally ill or permanently physically incapable people deciding to end their lives legally. Gordon Macdonald of the pressure group Care Not Killing has written to Ross Finnie, the Lib Dem MSP who chairs the End of Life Assistance (Scotland) Bill Committee, to express his concerns. "Alison Britton co-authored with Prof Sheila McLean, a book entitled The Case For Physician Assisted Suicide and a report titled Sometimes a Small Victory," Macdonald said.