Programme website: Emilia Fox unwraps the first episode of the new series. Programme website: Emilia and David introduce the series 20 finale - Awakening. Programme website: When a people smuggler is found dead in the City, Nikki must delve into Londons illegal immigrant community. Subscribe now for more! Broadcast on 19/01/2017 Silent Witness stars Liz Carr and David Caves chat about 20 years of the worlds .