EXECUTIVE Councillor Denis Chang Khen-lee will succeed Rosanna Wong Yick-ming as chairman of the Police Complaints Committee (PCC). Ms Wong, who is also Housing Authority chairman, resigned from the post because of her workload. The Government will announce Mr Chang's appointment today. Mr Chang, one of the leading Queen's Counsel in Hong Kong and a former Bar Association chairman, is known to be regarded by Executive Council colleagues as one of the most liberal-minded members. The police-run Complaints Against Police Office (CAPO) carries out investigations ratified by the PCC, which is an independent body appointed by the Governor. Last year, 3,250 investigation reports were received involving 4,146 allegations, which involved assault, offensive language and conduct, neglect of duty. On average, the PCC has to process about 60 to 80 cases each week. CAPO Senior Staff Officer Ross Williams said yesterday that he welcomed the new appointment. ''I think his legal background would surely be of great assistance,'' he said.