Many UN documents address the specific ethical obligations of doctors and other health professionals  for example in Principles of Medical Ethics Relevant to the Role of Health Personnel  Particularly Physicians  in the Protection of Prisoners and Detainees Against Torture and Other Cruel  Inhuman  or Degrading Treatment or Punishment  Body of Principles for the Protection of All Persons under Any Form of Detention or Imprisonment  Standard Minimum Rules for the Treatment of Prisoners  and the Manual on the Effective Investigation and Documentation of Torture and Other Cruel  Inhuman or Degrading Treatment or Punishment (The Istanbul Protocol)