How a Holocaust survivor is changing US policing

A training programme designed to discourage police misconduct is being adopted across the US after months of protests over the use of excessive force. The Holocaust survivor behind the training believes that, after initial success in one city, it can change police culture nationwide.

As World War Two reached its crescendo, the actions of two people left an indelible mark on Dr Ervin Staub's life.

Born in Hungary to a Jewish family, he was a six-year-old child when Nazi German forces occupied Hungary in 1944. At the behest of the Nazis, hundreds of thousands of Hungarian Jews were rounded up and deported to extermination camps.

Two decisive interventions ensured Dr Staub and his family did not meet the same fate.

A woman named Maria Gogan hid him and his one-year-old sister with a Christian family.

"She looked after us kids," Dr Staub told the BBC. "I was walking with her and my sister in Budapest when the German tanks rolled in."

For a while, Dr Staub and his sister posed as Ms Gogan's relatives from the countryside. Then, when Dr Staub's mother obtained protective identity papers for his family from Swedish diplomat Raoul Wallenberg, they moved into a safe house nearby.