Rejoining the Met in February 2005, Hayman left Norfolk to become the Metropolitan Police Service's Assistant Commissioner for Specialist Operations,[REF] a role which placed him in overall charge of counter-terrorism operations conducted by the now defunct Special Branch and the Anti-Terrorist Branch [REF].
Hayman, along with Commissioner Sir Ian Blair, was criticised by the press and the Independent Police Complaints Commission over the mistaken shooting dead of Jean Charles de Menezes at Stockwell Underground station on 22 July 2005 [REF].