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Code of a Killer 

The story of Sir Alec Jeffreys' discovery of DNA fingerprinting and its first use by DCS David Baker in catching a double murderer.




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Series cast summary:
John Simm ...  Alec Jeffreys 2 episodes, 2015
Anna Madeley ...  Sue Jeffreys 2 episodes, 2015
David Threlfall ...  DCS David Baker 2 episodes, 2015
Lorcan Cranitch ...  DI Alan Madden 2 episodes, 2015
Jaz Deol ...  DC Taran Kholi 2 episodes, 2015
Andrew Tiernan ...  DS Geoff Taylor 2 episodes, 2015
Robert Glenister ...  DCC Chapman 2 episodes, 2015
Lydia Rose Bewley ...  Vicky Wilson 2 episodes, 2015
Tobias Burton-Rudge Tobias Burton-Rudge ...  Gavin Hopkirk 2 episodes, 2015
Farzana Dua Elahe ...  Tania Patel 2 episodes, 2015
Paul Copley ...  Sidney Jeffreys 2 episodes, 2015
Ged Simmons Ged Simmons ...  Eddie Eastwood 2 episodes, 2015
Shirley Dixon ...  Joan Jeffreys 2 episodes, 2015
Hannah Walters Hannah Walters ...  Kath Eastwood 2 episodes, 2015
Dorothy Atkinson ...  Barbara Ashworth 2 episodes, 2015
Jessica Woods Jessica Woods ...  Carole Pitchfork 2 episodes, 2015
Neil Edmond ...  Robin Ashworth 2 episodes, 2015
Darren Bancroft ...  Mr. Hopkirk 2 episodes, 2015


DCS David Baker headed up the investigation into the brutal murders of two Leicestershire schoolgirls between 1983 and 1987. Only a few miles away, Dr Alec Jeffreys, was a scientist at Leicester University who, on 10 September 1984, invented a remarkable technique to read each individual's unique DNA fingerprint. When a local teenager admitted to one of the murders but not the other, Baker asked Jeffreys to analyze the DNA evidence left at the crime scenes. Both men were shocked to discover that the teenager was innocent, his confession false. DCS Baker then took the extraordinarily brave step to launch the world's first ever DNA manhunt, testing over five thousand local men to track down the killer. Written by dvd

Plot Summary | Add Synopsis


Murder is in the blood.







Release Date:

2015 (UK) See more »

Also Known As:

Code of a Killer See more »

Filming Locations:

Ripley, Surrey, England, UK


Box Office


GBP0 (estimated)
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Company Credits

Production Co:

World Productions See more »
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Technical Specs


| (2 parts)


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Did You Know?


In the first episode, when DCS David Baker first meets Alec Jeffreys on the steps, the real Alec Jeffreys walks up the steps and passes them. See more »

Alternate Versions

When Code of a Killer was released on DVD, the two 90-minute episodes were re-formatted as three 60-minute episodes. See more »


Featured in The Wright Stuff: Episode #20.70 (2015) See more »

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User Reviews

Familiar cast in docu-drama about early DNA testing..
28 February 2017 | by canuckteachSee all my reviews

If you are a fan of the true-life crime investigation series out in the wild (Forensic Files, Murder Comes to Town, etc.) that involve matching suspects to DNA evidence, then this is a must-see for you. The inventor of DNA testing, Alec Jeffreys, is a main character in this 'sort of' 3-part docu-drama about catching a rapist-killer in a small town in England in the mid-80's. Jeffreys' research at a university lab near the infamous attacks on 2 teen girls is profiled, as his work is key in exonerating a falsely-accused boy, and nailing the real killer.

Interestingly, if this were a fictional story, many viewers would be saying, 'O come on... this sort of thing could never happen that way...!', thus proving that truth is stranger than fiction (or 'life imitates art', as you please).

Three actors always worth watching (together or apart): John Simm (who plays Jeffreys), Robert Glenister (the DCC - Glenister looks like a real DCC, or a cop you would want on your side if you were wrongly accused of murder - he gets my vote) and David Threlfall as the determined DCS doggedly chasing the real perpetrator. I think Simm & Glennister effectively teamed up also in the Brit version of 'Life on Mars'. Threlfall looks completely different from his IMDb profile pic, thus showing that great Brit actors transform themselves enough to suit even a grim role, unlike popular American actors who show the same glam profile in every shot of every movie - (you know the ones I mean: pretty boys!).

A great BRIT 3-parter I caught on ACORN-TV, well worth the price of admission for this alone. 9/10

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