Police declared Jakarta Governor Basuki Tjahaja Purnama, or Ahok, a suspect for blasphemy last week, following major protests from hard-line religious groups. How has the 1965 Blasphemy Law been used in democratic Indonesia? What type of behaviour is typically deemed blasphemous? Is Ahok likely to receive a fair trial? We spoke to Dr Melissa Crouch, who has published widely on the Blasphemy Law, about these questions and more.