They say it is one of the oldest professions, but working in the sex industry can also be very dangerous.
Sex workers around the country can be targeted by dangerous offenders, with some even being raped or murdered.
Euxton-born Alex Feis-Bryce is doing his bit to change things and runs the innovative National Ugly Mugs Scheme (NUM), which is thought to be the first of its kind in the world.
Nearly 2,000 sex workers are signed up to the scheme to receive warnings about dangerous individuals who could pose a threat to them.
And sex workers who do become victims of crime can report incidents to NUM, building up intelligence for the police.
Alex, 31, said: “Sex work is highly stigmatised and nobody, irrespective of what they do, deserves to be raped or murdered.
“Sex workers don’t always get the help and protection they are entitled to as a human right.