Thousands flocked to Newcastle's Centre for Life over the weekend to learn learn from some of the most creative inventors in the world at the Maker Fair science festival.
They got the opportunity to get their hands on soldering irons and electrical components to create their own tech.
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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.