“If police believe an attacker is wearing a suicide vest, then they are right to take the action that they do and did.”
He said people cannot be protected “on the cheap”, but added: “We have to understand that no government can prevent every attack. No-one would believe any political leader who said they could. But the government can act to make such acts of terror less, rather than more, likely.”
It comes as Johnson accused the last Labour “leftie” government of bringing in early prisoner release legislation which allowed Khan, who was jailed in 2012, back on the streets.
But others have pointed out that Khan had appealed an indeterminate imprisonment for public protection (IPP) sentence in 2012. The Coalition later scrapped these sentences and Khan successfully launched an appeal to have his sentence cut.
Johnson also pointed out on BBC One’s Andrew Marr Show that the Conservatives were pledging £2.5bn of investment in the Ministry of Justice.
Setting out how his approach would differ Johnson’s, Corbyn said: “I will be a very different kind of prime minister: one who is prepared to limit my own power in the public interest and empower parliament to hold government to account.”
The Labour leader also reiterated his opposition to the Iraq War and said his party would end arms sales to Saudi Arabia for use in Yemen.
Corbyn ended his speech talking about patriotism, stating: “Patriotism is about supporting each other, not attacking somebody else. It’s about caring for the whole of society, for all our people, and not walking by on the other side when they need help and support.
“It’s about loving your country enough to make it a place where nobody is homeless or hungry, held back or left behind.
“On the international stage, it’s about standing up for the values we share of justice, human rights and democracy, and working with others to keep people safe, by ending conflict and tackling the climate emergency.”