Professor Ian Graham is leading the team at York University which has discovered the key to mass-producing a chemical called Noscapine. It's extracted from poppies, and is currently being tested as a potential anti-cancer drug.
Researchers discovered a bundle of five genes which tell the poppy plant how to produce the chemical.
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Former Police Inspector Harry White told the inquests that he was told that fans entering the terraces should "find their own level."
A former police inspector has told the inquests he realised fans entering through an exit gate would head towards already crowded pens.
The man is thought to have tied himself to the bottom of the vehicle as it travelled from Calais to Kent.