THE British and Chinese Governments will mount a joint effort to persuade other countries to grant visa-free privileges to holders of British National (Overseas) and Special Administrative Region passports. Secretary for Security Peter Lai Hing-ling said the two sides were working on the format of negotiations and the priority of countries to be lobbied. Until recently China was unenthusiastic about a joint effort to promote the two passports, instead applying pressure to Britain to take the lead by extending visa-free treatment to SAR passport holders. Mr Lai said Britain had not decided whether it would admit SAR passport holders, but he hoped the Government would take this course of action. Two factors will be considered when drawing up the priority list, he said. They would study which countries Hong Kong people travelled to most and those whose people visit the territory most often. China and Britain were also focusing on the arrangement for issuing the SAR passport, having decided on its form and forgery prevention facilities.