The brutal knife attack on London Bridge, has put criminal law on top of the political agenda, less than two weeks before Britain holds a general election.
UK Prime Minister Boris Johnson, who is seeking re-election in December, said it's important to hand down appropriate prison terms, and that violent criminals must receive longer sentences.
Main opposition Labour Party leader Jeremy Corbyn criticized the government's sentencing policies, calling for a full investigation into the authorities' decision-making process.
British police have revealed the identity of the 28-year-old attacker, Usman Khan, who stabbed two people to death and injured three others.
Khan, who was shot dead by the police, had been convicted of terrorism offenses in 2012 and released from prison last year.
The Islamic State has claimed responsibility, saying Khan was one of its fighters, but British authorities are doubting those assertions.