We are raiding the Guardian Long Read archives to bring you some classic pieces from years past, with new introductions from the authors. This week, from 2019: On 5 October 1999, two trains collided at speed in west London, killing both drivers and 29 passengers. Barrister Greg Treverton-Jones, who survived the crash and worked on the harrowing inquiry, pieced together what went wrong Warning: this article contains graphic descriptions of injury and trauma. Help support our independent journalism at
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