Parents say a huge number of pupils at William Howard School, in Brampton, were put in isolation because of their uniforms.
The school has hit back, saying fewer than 100 pupils were spoken to on the first day of term.
The school uniform debate is continuing today, with tens of parents, and pupils, contacting ITV Border about being excluded from lessons at William Howard School.
The school says that 80 pupils were spoken to about their uniforms on the first day back from term, and that it's helping parents to ensure their children have the right uniform.
Hollie Coopey, 14, is a pupil at the school. She was told her trousers were too tight:
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