BBC exclusive: A look inside Wandsworth prison

The BBC has been given exclusive access inside Wandsworth prison.

Correspondent Ed Thomas has spent the last week there, and found a prison where staff are overstretched, drugs are easily available and violence is rife.

His report comes as a radical reform of the prison system in England and Wales was announced during the Queen's Speech on Wednesday, which ministers are describing as the biggest shake-up since the Victorian era.