The incident in Southampton was debated in Parliament in London on Tuesday, the day after a man was sentenced to life imprisonment for the act.
Police body camera footage shows the teenager complaining that he can't breathe but being forced to sit up as officers handcuff him and say they doubt he was stabbed. Shortly afterwards, he loses consciousness.
The man who stabbed him then claimed he had been subjected to a racist attack.
The incident has also been exploited in politics. According to Sky News on Tuesday, Reform Party leader Nigel Farage said the police's actions were proof that white Britons do not have the same rights as ethnic minorities. His remarks have in turn sparked protests.
