I think it's even worse than that. If at some remote possibility that a criminal does get caught and charged with a crime, the prisons are full (37% foreign criminals [0]) so they won't do any prison time, and therefore no justice is served. In fact our prisons are so full, violent criminals are being let out after serving only their half term [1].
[0] https://en.wikipedia.org/wiki/United_Kingdom_prison_populati...
[1] https://www.bbc.co.uk/news/articles/cwyrkz9ryr5o