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A victim of a stabbing can bleed to death in just five minutes, so the priority for first responders is to control bleeding from the wound.

Joseph Bentley is in his final year at Loughborough University and has designed something that could save lots of lives.

His project is called REACT – it is a new method for rapidly stopping catastrophic blood loss from a knife wound that could be carried out by first responding police officers while waiting for an ambulance.

He explained to Jimmy Carpenter how his invention works.