London private school investigated over blanket A or A* grades in 2021 A-levels

North London Collegiate School has faced multiple malpractice allegations over way grades awarded

A prestigious private school in London has faced multiple investigations into the way it awarded exam grades in 2021, when all its A-level entries received A* or A, the Guardian has learned.

Senior leaders and teachers at the North London Collegiate School (NLCS) have been placed under investigation for alleged malpractice in setting teacher-assessed grades, which replaced formal exams cancelled by the government because of the Covid pandemic.