The Hong Kong government should use its proposed accountability system prudently to investigate department heads and avoid undermining morale among civil servants, a top adviser to the city’s leader has said.But Regina Ip Lau Suk-yee, convenor of the city’s top decision-making Executive Council, stressed on Sunday that the system would serve as a reminder for leaders to actively spot deficiencies in their departments and “do better in handling residents’ complaints”.In a televised interview,...