A Cardiff pub which was the centre of violent crime and drug abuse has been shut down in what is believed to be the first case of its kind in Wales.
The Tredegar House pub in Clifton Street, Adamsdown, had its licence revoked under new licensing laws.
It followed several outbreaks of violence and the discovery of large quantities of crack cocaine.
Councillors warned that other licensed premises failing to tackle problems would be "dealt with severely".
The pub had earlier been closed under an Anti-social behaviour order (Asbo) for three months following incidents inside and outside.
Police applied for the revocation of the licence after figures showed that since the pub was closed, there was a 24% drop in violent crime in the area.
Sgt Trevor Jones from South Wales Police said that revoking the licence was the "last resort".
He said he believed it was the first time such a step had been made in Wales and possibly Britain.
"This result shows we won't tolerate the distribution and use of illegal drugs," he added.
"Where there is evidence of this and large scale disorder in licensed premises we have no option but to ask to close them down."
The pub prompted complaints from residents. One assault there in September 2005 resulted in a serious injury, and large quantities of crack cocaine and cannabis were found inside the pub during a police search.
'Constant source of problems'
An Asbo to close the premises for three months was granted, but police feared that the pub would reopen and trouble would begin again, so they decided to apply for a review of the licence.
Under new licensing laws introduced last November, decisions such as this are taken by councillors rather than a magistrate.
Cardiff Council's licensing sub-committee was told the pub a "constant source of problems and public nuisance to those living in the vicinity."
They were also told of the violent crime and illegal drug abuse centering around the pub.
Councillors said to prevent crime, disorder and public nuisance they decided to remove the licence, which means it can no longer run as a pub.
Committee chair Michelle Michaelis said: "The authority is determined to ensure that licensed premises in Cardiff meet the highest standards.
"I hope that the strong action taken by the authority will send out a message that premises which encourage crime and disorder and are a nuisance to their community will be dealt with severely."