Jon Venables, pictured as a boy, has been given lifelong anonymity by the courts
Jon Venables and Robert Thompson were found guilty of killing Bulger in November 1993 and were sentenced to custody until they reached 18.
They were freed in 2001, aged 18, and given a new identity to protect him from the risk of vigilante attacks.
They were made the subjects of so-called 'Mary Bell orders', lifetime anonymity court injunctions named after Mary Bell, who was found guilty of killing two boys at a hearing in Newcastle in 1968.
Only six people have been made subject of the orders; Venables, Thompson, Bell, Maxine Carr, who was convicted of perverting the course of justice in the Soham murders, and two brothers who, aged ten and 11, tortured two younger boys in Edlington, South Yorkshire in 2009.
At the time of Venables' first release from prison, a psychiatrist ruled that he did not pose a danger to the public and was extremely unlikely to commit any further offences.
Years later it emerged Venables had been detained in Vardy House - a small eight-bed section of Red Bank secure unit in St Helens on Merseyside - where it's said he made such good progress he was kept there for eight years, despite it actually being a short-stay remand unit.
Shortly before his release in 2001, when aged 17, Venables was reported to have allegedly had sex with a woman who worked at the Red Bank secure unit where he was being held. The allegations were investigated and a female staff member accused of sexual misconduct was suspended, never to return.