“We weren’t given much notice when we were leaving,” says ex-prisoner Jason. "Now, I'm lost. I don't actually know what to do."
He walks across London to meet us but he has no money for a bus. He says he has a travel ticket given to him when leaving prison, but bus drivers don’t often accept them.
“They don't know what they are, even when I explain. They don't let me onboard,” he says.
It happened again, but Jason, which is not his real name, is keen to tell us his story and explain why he has gone from sleeping in a prison cell to living on the streets after his early release.