Taipei Mayor Chiang Wan-an is losing senior staff to corruption probes ahead of an election, and opposition politicians say firing them is not the same as taking responsibility.

• The head of Taipei's Feitsui Reservoir authority, Lin Yu-yi, was fired after being searched and released on bail in a graft case.
• Less than a month earlier, Chiang's former spokesman quit and was bailed in a separate leak case tied to Taichung city purchasing.
• Lin was one of Chiang's first hires on day one of his term, so critics say the mayor cannot blame anyone else for the pick.
• DPP city councillor Hsu Shu-hua asks what the city did between getting the internal report on 17 August and acting on 21 August, and whether anyone else was checked.
• She wants the city to publish the scope and results of its internal audit within a month, or the firing looks like damage control before the vote.

Outlook: Pressure will build on Chiang to show a wider clean-up of city agencies rather than a single dismissal as the election nears.