THE killer of toddler James Bulger is not alleged to have killed or seriously injured anybody else, Justice Secretary Jack Straw has revealed.

But, in an emergency statement to MPs, Mr Straw still refused to reveal the real reason about Jon Venables’s recall to prison. Asked to reassure the public that “no person has been killed or seriously physically injured”, he replied: “I have seen no allegations of that kind.”

But Mr Straw insisted he could say no more about the case to avoid prejudicing a future trial – despite hinting, just hours earlier, that he would bow to pressure to do so.

He told the Commons: “It is critical that, if charges do follow, it is possible to hold a fair trial – fair for the defence and fair for the prosecution.”

The decision was supported by Merseyside MPs George Howarth (Knowsley North and Sefton East) – and Peter Kilfoyle (Liverpool Walton), although Mr Howarth called for the information to be released “as soon as possible”.

Earlier, Denise Fergus, James’s mother, had revealed her torment that 27-year-old Venables had struck again, in an interview with ITV’s This Morning show.

She said: “I don’t know whether he has gone on to kill someone else.

“I have had sleepless nights and I am not eating again – I have had to pull my kids out of school. It is just one massive rollercoaster again for me and I can’t believe that they are putting me through this.”

Mr Straw could meet Mrs Fergus as early as today, although James’s father, Ralph, was understood to have said he had no wish to attend a meeting.

The meeting is likely to be stormy, after Mrs Fergus used yesterday’s interview to accuse ministers of making her family’s suffering worse by throwing “lies” at her.

Mr Straw’s aide was even forced to apologise after he mistakenly called her “Mrs Ferguson” during the statement, adding: “It was a slip of the tongue. He apologises for any offence caused by that.”

That followed an earlier gaff on Radio 4 when he referred to Denise as Mrs Bulger.

The aide also denied Mr Straw was quietly conceding that allegations that Venables possessed images of child pornography were correct, saying: “Our position has not changed. We are not confirming, or denying, anything in the papers.”

He said the “investigation was moving quickly”, but did not know when a decision would be made about whether to bring charges against Venables.

It is understood that an investigation will be launched into the probation service’s supervision of Venables, regardless of whether charges are brought after Mrs Fergus called for staff to be “sacked”.