A school's strict policy which has pupils waiting up to an hour to be escorted to the toilet has outraged some parents.
Hellesdon High School require pupils to be accompanied by a member of staff to the toilets.
But some parents say they're "outraged" by the policy at the school, which is one of 11 run by the Wensum Trust.
It comes after the school made the controversial decision to install CCTV cameras in the toilets to combat vandalism.
Deborah Green, a grandparent of three pupils at the school, said children have lost their "basic human rights" due to the rule.
She said: "I'm outraged by what's going on.
"If the children need to use the toilet they have to wait for someone to take them which can sometimes take at least an hour.
"Surely this is an infringement on their human rights - it's been going on for months.
"I understand the school doesn't have the funding to have someone monitoring the toilets all day but there's CCTV so why can't the children use the toilet when they need to?"
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Principal of Hellesdon High School, Mike Earl, explained: "Following ongoing concerns from staff, students and parents about behaviour and vandalism within our school toilets, we have made a decision to restrict access to toilets during lesson times.
"Toilets are still accessible to all students before and after school, break and lunchtime and accessible at all times to those with specific health or sanitary needs.
"We also ensure a member of staff is available at all times to grant access to the toilet should a student require it.
"It's important that all the children within our school feel safe when using the toilet and we're currently working with students to prevent large groups congregating there to prevent any behaviour which falls below the standards we expect."
Shaun Martin, who lives in Hellesdon, says he and his wife have contacted the school about the issue, because of their 14-year-old daughter's apprehension to attend classes.
The 43-year-old added: "My daughter came home and told me - I couldn't believe it.
"How is removing access to toilets allowed in this society?
"The kids aren't happy about it because they only open a few during break and it's like a festival with everyone queuing up - if you don't get to the toilet by then, tough.
"Even people in prison have access to a toilet at all times.
"My daughter isn't keeping hydrated when she does go to school and is apprehensive of going in at all at the moment.
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And while Mr Martin understands the reasons behind the closures, he believes there are better ways to go about catching the vandals.
He added: "I can't see that the way the school is going about things is the right way.
"There's already CCTV in the toilets and if a member of staff was to either check in on the toilets, or the footage, every now and again they could narrow it down to who's vandalising everything.
"I get that they'll be students trying to bunk off or disrupt lessons but the school still has a duty of care for its children.
"As parents you try and do what's best for them and you leave them with the school each day, expecting them to do the same.
"However I don't think that the school is taking that duty of care responsibly."
The school has around 1,500 pupils and is rated good by Ofsted, with a short inspection in 2017 reinforcing that full judgement in 2012.
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