As those types of jobs become difficult to find, the sex workers go back to the streets and charge customers (£20) per act.
Foreign escorts provide 24h service at Hartley Hotel across the street from the Met's Forest Gate nick in east London.
There are more than 1,000 illegal brothels in greater London area alone.
Half of the illegal brothels are run by the Albanian Mafia.
These prostitutes were able to find jobs such as cleaners and other low-paid jobs.
Prostitute prices in London are from -40 for street girls.
Prostitute prices in London is -0 for the full experience.
Sex workers reported they were being forced to charge 50 per cent less now than they had done a few years ago as they coped with the impact of the struggling economy like the rest of Britain.
That meant sex workers, who often worked alone, were accepting clients who appeared more dangerous, putting them at risk of rape, sexual assault, physical abuse and robbery.