BBC Trending: Meet the anti-witch hunter

In many parts of the world there is still a fear of witches and witchcraft. Those accused are often vulnerable, yet they are blamed for a variety of afflictions, from disease to infertility and poverty. They often face persecution, abuse and lynching. From his base in Nigeria Dr Leo Igwe, after receiving tip-offs on social media, intervenes and protects those accused of witchcraft across the African continent from being attacked. He also lobbies local authorities to prevent witch-hunting drives from taking place and organises educational campaigns to counter existing occult narratives.