Season 8, Episode 3:
DNA tests on charred remains found in 1996 lead the team to Home Office fingerprint analyst Anna King, who was brought to the UK from Albania as a child by her brother, David Celaj. Anna was adopted by a British couple, while David went to work as a police interpreter. His last assignment was to translate for a witness in a murder case against a notorious Albanian criminal.
A motley crew of retired police officers re-opens troublesome cases that were never laid to rest.