“Your passport”. We looked at each other – we didn’t know we were supposed to bring it. We left it in our bags back at the school, together with our phones and cameras. None of it was allowed on a visit to a prison in Tanzania. I was volunteering at Magereza Nursery School, in Moshi. The school is located inside the Magereza prison quarters and it offers free classes to the children of guards and prisoners, as well as to the children that live in the village in front of the prison. One of the boys in my class, Joshua, lives with his jailed mum since he was born. In…