He added: “The school was and remains an outstanding school, but there are aspects of the change in leadership that make me wonder if they're treating it like a failing school that needs to be whipped into shape.”
A 41-year-old mother, who has one child at the school and also wished to remain anonymous, said the policy had triggered strong feelings among parents.
She said: “Some parents don’t feel comfortable about children at that age having to do this, they don’t think it’s right.
“My husband thinks it’s ridiculous and unnecessary – that it looks very much like they are prisoners.”
Angela Abrahams became the school’s new executive headteacher in September. She is also head of St Clements Danes in Covent Garden.
She said: “Our recently introduced University Walk inspires children to be the best they can be and to ‘Go Shine in the world.' [the school’s school motto]
“It was introduced to strengthen pupil safety, further raise the aspirations of pupils and to maximise learning time.
“Since introducing the university walk we have seen a 93 per cent reduction in the number of recorded incidents around the school.
“Staff report that they appreciate the impact it has had on learning time and pupils continue to be very happy and excited about learning.”