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Expert WitnessEpisodes

  1. Tomorrow10:45
    BBC One

    The Shooting of Olivia Pratt-KorbelSeries 4

    10/15An image analyst helps detectives unmask the killer of a young girl in Liverpool.(R)

  2. Thursday10:45
    BBC One

    Blood on the CarpetSeries 4

    11/15A mother and son vanish in 1976. Forty years on, a blood analyst helps to find the killer.(R)

  3. Friday10:45
    BBC One

    The Rachel Nickell Murder: Justice at LastSeries 4

    12/15Rachel Nickell’s murder was unsolved until DNA technology finally identified her killer.(R)

  4. Next Monday10:45
    BBC One

    Unearthing the TruthSeries 4

    13/15A boy's killer escapes detection. Thirty years on, a pollen expert finds crucial evidence.(R)

  5. Next Tuesday10:45
    BBC One

    Buried SecretsSeries 4

    15/15A murder in Glasgow goes cold. Seventeen years on, a soil expert helps convict the killer.(R)

  6. Next Wednesday10:45
    BBC One

    Face of a Killer and Proof in the PollenSeries 3

    6/15A facial recognition expert helps Merseyside Police catch the killer of a young man.(R)

  7. Thu 6 Aug 202610:45
    BBC One

    Hidden Blood and Traces of a KillerSeries 3

    7/15An expert witness helps police link a drug gang to the death of a man in Wales.(R)

  8. Fri 7 Aug 202610:45
    BBC One

    Threads of Evidence and Bad ChemistrySeries 3

    9/15A UK fibre specialist brings closure to Australia’s longest-running murder investigation.(R)