Police in Newcastle want to hear from anyone who was at the BAMMA 12 martial arts show at the Metro Radio Arena on Saturday night after a woman was hit by an un-manned police car.
Officers were responding to an emergency call inside the venue when the 38 year old victim was struck. She suffered facial injuries.
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Sandiford, a former legal secretary originally from Redcar, was convicted of drug smuggling offences and sentenced to death in 2013.
Durham Crown Court heard that one of the male victims suffered a triple-fractured jaw, while left lying in the gutter, unconscious.