The former fiancee of Soham schoolgirls killer Ian Huntley has won an indefinite extension to a court ban on newspapers reporting her new identity and address.
Ms Maxine Carr (27), one of Britain's most reviled women, who obstructed police investigating the 2002 Soham murders, served half of her three-year sentence before being released in May last year under a new name.
In December 2003, she was convicted of conspiring to pervert the course of justice with Huntley, who killed schoolgirls Holly Wells and Jessica Chapman. She provided a false alibi for Huntley by lying to police about her whereabouts on the weekend when the 10-year-olds were murdered.
Mr Justice Eady said: "I am satisfied that the only effective means of discharging the court's protective duty is to grant the injunction in the terms sought. "It is necessary to protect life and limb and psychological health.
"It is right to emphasise that there is always a right if the circumstances change for the media or any interested party to apply to the court at short notice for a discharge or variation of the order."
Earlier, Ms Carr's QC, Edward Fitzgerald, said there was an "overwhelming case" for making the injunction "against the world at large". It was called an injunction for life but really only applied until further order.
The case for the injunction was backed by the Home Office, the Probation Service and Humberside Police.
The Attorney General had been notified of the nature of the injunction and did not oppose it.
Mr Fitzgerald said such an order was "amply justified" on the grounds laid down in the previous cases of child killers Jon Venables and Robert Thompson and Mary Bell where similar permanent injunctions had been granted.
"There is a real and significant risk of injury or of worse - killing - if the injunction is not granted."
Ms Carr, whose fight for anonymity has reportedly been funded by £100,000 legal aid, was not in court. The order bans publication of any details which could reveal her new identity, including any description of where she lives and the nature of her work.
A High Court judge upheld an injunction last year that barred media from disclosing Ms Carr's new identity after her lawyer revealed she had received several death threats.