A secondary school which has sent home more than 200 pupils for uniform violations in two days says it believes the vast majority of parents are behind its crackdown.
Hanson Academy in Bradford sent 152 students home on Tuesday after it decided to strictly enforce its uniform policy.
Despite an outcry from some families, the school followed this up by sending 63 children home yesterday.
The school said most pupils returned quickly after a simple adjustment to their clothing, bu t some parents took to social media to complain about what they saw as draconian actions.
Linzi Stansfield said her 14-year-old son was sent home because his black shoes looked too much like trainers.
Ms Stansfield told ITV Calendar News: "They're not trainers, they're a sturdy shoe."
She said: "I asked if, at that point, he wouldn't be allowed to receive an education that he was entitled to, and she (the school attendance officer) stated that she would place him in isolation.
"I agree there have to be rules but I don't see how footwear can be deemed to be offensive or affect his learning."
Ms Stansfield said parents had received a text message over the half-term holiday telling them about the proposed crackdown.
The academy has denied a claim that pupils have been told the remove poppies as part of the crackdown.
Principal Elizabeth Churton defended the school's stance, saying it was enforcing existing rules.
She said: "Our uniform and dress codes set the tone for our community and provide the scaffolding for high standards in every aspect of school life.
"To ensure that parents and students were fully aware of the high expectations that we would have this academic year, we communicated clearly our expectations with parents and students at the end of the summer term, during the school holidays and at the start of this term.
"We were clear that we would be diligent with monitoring school uniform."
Ms Churton added: "We explained that students who arrived to school with a uniform issue that could be resolved would be sent home to rectify and parents would be contacted. As forewarned, some students were sent home today for this reason.
"We are very grateful for the support of the majority of our parents in ensuring that their child fully complied with our expectations."
In a statement issued before yesterday's further sanction, the principal said: "On Tuesday November 4 we sent 152 students home, which represents 8% of our whole school community. They were sent home to change and the majority rectified this immediately and returned to school ready to learn. This means that 92% of our school community supports our drive in standards of dress code."