Welcome to London!
The streets of London are brimming with crime in this world. The countries government has decided the most effective way to combat the countries crime rates while spending the least amount of money has been to privatize much of the countries crime fighting. Due to the reasons of both cost effectiveness and the tendency for non-Terran races to not cooperate with official government organizations, the privatization has been effective at cutting into the crime rates in the country.
The streets of London await detectives.