4 Season
60 Episode
Expert Witness - Season 4 Episode 4 Cracking the Killer's Code (2024)
When a violent gang use a secret language to discuss a fatal attack, police turn to a forensic linguist to crack their code. And one of the biggest cannabis growing operations ever seen in the UK is brought down with the help of a drugs expert.
- Country : United Kingdom
- Genre : Documentary, Crime
- Studio : BBC One
- Director :
- Cast : Ashley John-Baptiste