Pupils at Pelton Primary School in County Durham applied and were interviewed for the different roles within the 'Enterprise City'.
They are spending the day running their town and creating a vibrant economy.
Terry Coatham, the year six teacher at Pelton Primary School, believes the project is an important way for the pupils to learn about what careers they might want to go into in the future.
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Mike Barton of Durham Police is the national policing lead for the programme, which aims to turn around thousands of lives.