Following the current government's cutbacks to the state-run police, residents in one part of London (which is incidentally the "one of the safest ... seats in the United Kingdom"[0] for the current government) have funded their own private police force[1]. This is apparently working out well for them. The issue is that it furthers the division between the rich and the poor, with proper protection from crime becoming available only to the wealthy.

[0] https://en.wikipedia.org/wiki/Kensington_and_Chelsea_(UK_Par...

[1] https://www.theguardian.com/public-leaders-network/2018/feb/...