'Carla' describes life in witness protection

To date, little has been revealed about the UK's witness protection scheme. But Newsnight's James Clayton has been given an exclusive insight into the programme - speaking to both people who've been through it, and the man who runs it.

Here, "Carla" describes life in witness protection.

You can watch the full film on Newsnight on Wednesday 12 August at 22.30 on BBC Two, or afterwards on iPlayer.