No-smoking areas could become part of restaurant licensing conditions, some provisional urban councillors said yesterday. However, others complained that a new no-smoking law was difficult to enforce. A team of councillors checked three large restaurants in Central yesterday to see if they complied with legislation requiring those seating more than 200 to designate at least one-third as a non-smoking area. 'We are satisfied with today's inspection,' Provisional Urban Councillor Joseph Chan Yuek-sut, chairman of the public health select committee, said after checking City Hall Chinese Restaurant, Guangzhou Garden and Hunan Garden Restaurant. 'Enforcement of the law that bans smoking may be taken into consideration when issuing licences.' But select committee vice-chairman Wong Kwok-hing said the law, enacted last month, was controversial as it was difficult to implement. 'It is hard to ask managers or staff to ask their customers to stop smoking. They are doing business in here,' he said. Restaurant managers and workers are authorised by the law to ask customers smoking in the wrong area to show their ID cards and use 'reasonable force' to stop them. Police may be called in to offer help if necessary. 'We understand that it is inappropriate for managers to treat customers that way,' Mr Chan said. 'It may be easier for the Health and Welfare Bureau to authorise councils to carry out prosecutions as well, as we are doing the inspection anyway.'