Sadiq Khan has criticised the government’s handling of terrorists released from prison after Sudesh Amman stabbed two people on a busy street in south London.
The London Mayor tweeted: "The man responsible for yesterday's attack in Streatham was released from prison only days ago having served a sentence for terror offences. Something is clearly going seriously - wrong - and the Government have serious questions to answer."
Meanwhile, Labour MP for Streatham, Bell Ribeiro-Addy explained why Amman had been freed: “He was under surveillance quite soon after being released which begs the question, why was he released so soon?”
Boris Johnson said his immediate thoughts were with “the injured and all those affected” adding he would announce "further plans for fundamental changes" to the system for dealing with convicted terrorists.
In a statement, the Prime Minister insisted the Government had "moved quickly" to introduce measures to strengthen the UK's response to terrorism.
His words echo comments he made after London's last terrorist attack at Fishmongers' Hall near London Bridge when two people were killed by convicted terrorist Usman Khan.
After that attack in November, he spoke of his anger and claimed that scrapping early release from prison would have stopped Mr Khan’s murder spree.
The Prime Minister said that preoccupations with Brexit meant that the Government had been unable to make the changes required to keep violent offenders and terrorists in jail for longer.
Counter Terrorism Expert, Kevin Hurley told TalkRADIO's Julia Hartley-Brewer: "What we need is a serious review so that extremely violent offenders across the board, serial rapists and terrorists can get a proper sentence.
"Deal with the sentencing guidelines, make them much stronger for these types of offences, and take away automatic early release."
Details of the Counter Terrorism (Sentencing and Release) Bill were released last month but the bill has not yet been approved by Parliament.
They include forcing dangerous terrorists who receive extended determinate sentences to serve the whole time behind bars and scrapping early release from jail for those classed as dangerous and handed extended determinate sentences.
Terrorists deemed not to be a risk would have to serve two-thirds of their sentence before the Parole Board could consider them for release, as part of the bill.
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