Episode 5: Ex Parte v Inter Partes

Released on bail, Barry McCaffrey and Trevor Birney begin a legal fight to challenge the legality of the warrants. Central to their case is the question of what the judge who granted the warrants was - and wasn’t - told by police.

The judgment will be viewed as a landmark ruling on the rights of journalists to protect sources; were the warrants unlawful?

A BBC Northern Ireland production