Yes. The police have the ability to find and arrest the perpetrators pretty quickly, if they prioritise it. There was a phone theft which (unusually) turned into a stabbing/slashing a couple of years ago when the victim fought back. Perpetrators escaped on bikes before police arrived, but were arrested only 3 or 4 days later.

https://www.cityoflondon.police.uk/news/city-of-london/news/...