Labour’s Shadow Brexit Secretary Sir Keir Starmer is under growing pressure to explain why serial sex attacker John Worboys was not prosecuted over more dozens more sex attacks.

The outcry comes after the parole board sanctioned Worboys’ ‘imminent release’ from jail.

The decision has sparked fury in some quarters – especially on social media where many have voiced concern over the decision not to prosecute Worboys further and questioned why Starmer, who was Director of Public Prosecutions at the time of the conviction, did not seek further legal action.

London cabbie Worboys, a former stripper and adult film star, was jailed indefinitely in 2009, with a minimum term of eight years, for drugging and sexually assaulting women passengers.

Worboys, who became known as the ‘black cab rapist’ was found guilty of 19 charges of drugging and sexually assaulting 12 women passengers, in one case raping a woman.

But police said in 2010 that his alleged victims numbered 102 after more people came forward following his trial and conviction.

View photos John Worboys (left) and Sir Keir Starmer (PA) More

Sir Keir has urged any alleged victims with concerns about how their case was handled to contact the police.

Speaking outside his home in north London, Sir Keir, now the shadow Brexit secretary, said: ‘First and foremost, it’s very important that if there are any allegations that anybody thinks have not been looked into, sufficiently or at all, they go to the police and make those allegations so they can be looked into.

‘The second important thing is that it’s really important that what’s said is factually accurate.

‘As you know, the Crown Prosecution Service holds the file on this case, they made the decisions in the case, and it is really important you go to them to get an accurate read-out of the decisions that have been made.’

Asked whether he thought the right decision was made by prosecutors not to pursue further allegations against the serial sex attacker, he added: ‘I think these decisions were nine years ago and it’s very important you go to the Crown Prosecution Service and get an accurate read-out of the decisions that were made, particularly if further allegations have been made now.’

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View photos Serial sex offender John Worboys (Rex) More

The row threatens to turn political.

Former Conservative Cabinet minister Priti Patel said Sir Keir had ‘serious questions to answer’ over the case.

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