The number of complaints against taxis jumped by about 25 per cent between April and June, but the government's Transport Advisory Committee yesterday declined to point the finger solely at the drivers. The committee chairwoman, Teresa Cheng Yeuk-wah, said that although the number of complaints went up, it did not necessarily mean drivers were behaving badly as there were many factors involved. But she felt the complaints should serve as a reminder for the sector operators to reflect on their own behaviour. The committee's Transport Complaints Unit received 2,473 complaints against public transport between April and June. Taxis accounted for 1,530 of the complaints, representing an increase of 25.3 per cent over the first three months of the year, and a jump of 19.1 per cent on the same period last year. Ms Cheng said the surge could be related to the public's increased awareness about bad practices and newly introduced traffic laws such as the ban on using mobile phones while driving. She said seasonal fluctuations also played a part in the increase, as the second and third quarters of the year traditionally were the peak complaint periods. But among the 334 cases police have concluded investigating, only 29 incidents - or 9 per cent - resulted in prosecutions. The rest were withdrawn or the police concluded there was not enough evidence for further action. It was understood that some of the complainants did not provide adequate details of their complaints, such as the registration number of the vehicle whose driver they were complaining against. 'After a case is forwarded to the police for handling, it is still necessary for the complainant to appear in court or give further evidence before the driver could be prosecuted, so whether a case could be prosecuted largely depended on the complainant's willingness to come out,' she said. The number of complaints against franchised buses and minibuses also went up - by 18.5 per cent and 12.3 per cent to 719 cases and 623 cases respectively - in the second quarter of the year. Measures such as installing speed displays on minibuses and speed limiters on buses would continue, the committee said.