For the first time in its history China's National People's Congress is set to pass new laws to protect the human rights of prisoners.

However, the new laws will not help those held in China's so-called "black jails," the secret detention centers where those who dare to criticize the government are held, without charge and with no access to a lawyer.

ITV’s Angus Walker gets a look at some of these usually hidden "black jails" and talks with some of the people who have escaped them.