A seasonal campaign to warn festive revellers off using unlicensed taxis is being launched by Swansea Council.
Cabs are black and private hire cars are white, says the council
Building on its summer campaign, the 'Who's Taking You Home Tonight?' warning is targeting pubs and clubs.
Posters will be put up throughout the city to raise awareness of the issue.
A BBC Wales investigation earlier this year into the taxi trade in Swansea, found unlicensed vehicles, uninsured drivers, and illegal operators.
Licensed taxi drivers told the current affairs programme Week in Week Out that not enough was being done by the local authority to combat the problem.
However, at the time Swansea Council - which is in charge of regulating more than 600 taxis - said it was satisfied that it was doing enough to combat the problem.
Councillor John Hague, the council's cabinet member for environment, said: "Swansea has more than 600 licensed cabs and private hire cars. They're safe to use because the drivers and the vehicles must comply with regulations laid down by law.
"This means that we not only run police checks on all drivers, but their cars are subject to a rigorous six-monthly inspection for roadworthiness and safety. These checks are among the most stringent carried out by any local authority in Wales."
Swansea Council said licensed vehicles were easily recognised. It added that cabs were black, private hire cars were white and all of them displayed prominent green, white or yellow plates and stickers.
The project has won the backing of the Safer Swansea Partnership.
Jeff Davison, of the partnership, said that it was vital people understood the risks associated with unlicensed cabs.
Swansea was the subject of a BBC investigation into taxis
"Although the council and the police are playing a leading role for Safer Swansea, it is essential we all do our part as individuals to make a safe city.
"This can be as simple as always ensuring we use a properly licensed taxi or private hire vehicle which are easy to identify, well regulated and plentiful in the city.
"In the last 12 months to October, we brought 17 cases to court and there are more prosecutions in the pipeline.
"Unlicensed cab drivers will be prosecuted. We will also prosecute drivers driving unlicensed vehicles and illegal plying for hire by private hire vehicles."