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Part 7: The tapes

Recordings of police interrogation tactics cause shock and outrage in the Appeal Court.

• 39 mins

Part 8: The 'confession'

‘People will confess to anything to stop something happening.’

• 40 mins

Part 9: Cold case

7 James Street gives up its secrets.

• 36 mins

Part 10: The real murderer

"I’m quite looking forward to death to find out if God or the devil exists."

• 29 mins

Part 11: 'The police made me do it’

The original murder witnesses come clean – it was all lies.

• 33 mins

Part 12: Shreds

The UK’s biggest-ever police corruption trial.

• 39 mins

Part 13: Tiger Bay’s last fight

Back to Butetown and the Cardiff Five, 30 years on.

• 40 mins