The strictly Orthodox Jewish community relies mostly on private education for schooling, with almost all Jewish children attending private, single-sex Jewish schools. In 2005, the Stamford Hill Yesodey Hatorah Senior Girls' School achieved voluntary-aided status. In 2014, the Oxford, Cambridge, and RSA (OCR) Exam board, having conducted an investigation into alleged exam malpractice, concluded that the school had redacted questions involving the evolution of species on GCSE science exam questions. Ofqual subsequently ruled that blocking out exam questions is malpractice, and, accordingly, not permissible. The same year, it was reported by the BBC that many of the yeshivas in the area "usually don't provide any maths, English or science" classes and were operating "without the most basic health, safety, and child welfare checks". In an article on Stamford Hill yeshivas, The Telegraph cited government documents obtained by Channel 4’s Dispatches and the Jewish Chronicle as saying that between 800 and 1000 boys aged between 13 and 16 are “missing” from the school system in the borough of Hackney alone.