demanding to be consulted on the changes. Önaç's reforms were marked by a conscious effort to attract middle-class children from affluent backgrounds in place of the racially and socially diverse communities that had previously made up the student body at Fortismere - he told the Evening Standard: "I estimate that a family with two children will save £250,000 in private school fees by sending them to us and [the school's sixth-form block] Tetherdown, and a family of four £500,000", and reflected that after he had been in post for two years implementing his reforms, "most families here are wealthy or middle-class". An early reform by Önaç in 2006 was scrapping the school's previous policy of mixed-ability classrooms, and "setting" the pupils by ability for all subjects, prompting accusations from parents that poorly-performing students were being segregated and neglected. In September 2009, Önaç altered the comprehensive school's entry criteria, removing 10% of the school's places previously allocated to children from the local community, and instead reserving them for musically gifted children – a policy described as 'elitist', favouring children with wealthier parents who had been able to pay for private music tuition before the age of 11. Önaç was also criticised for a policy towards children with special needs. Ten children were affected by the policy, which reduced personnel in what had been a well-staffed special needs department, and breached legal requirements concerning the hours of support provided to children. Parents sought a judicial review of Önaç's approach to special needs provision, but in December 2009 abruptly he resigned from his post mid-academic year, soon after the legal action started. The action was subsequently discontinued and special needs provision improved after Önaç's departure. Önaç resigned to take up the headmastership of the selective St Olave's Grammar School in September 2010, although after his suspension and resignation there amidst legal action in 2017, a Bromley London Borough Council inquiry found that he had knowingly carried out a series of unlawful policies throughout his time as headteacher there, including the unlawful exclusion of underperforming students in a bid to boost the school's league table rankings: The Times divulged that Freedom of Information requests revealed 72 A-Level students had been forced out during Önaç's tenure at St Olave's. Parents at Fortismere would later liken Önaç's actions at St Olave's to his earlier actions at Fortismere. Vertical tutoring and colleges Under the leadership of headteacher