At this time, the legislature was already tense because of the dispute over whether Wu Tse-yuan--who was convicted of bribery, released on bail, and then elected a legislator--should be a representative from the Legislative Yuan to the National Judicial Reform Conference. The result of the face-off and the halting of the agenda was that fists flew, something which had been rarely seen these past few years in the Legislative Yuan.
加上仍因四汴頭弊案而訴訟纏身的無黨籍立委伍澤元是否能夠代表立院參加全國司法改革會議，也引起許多立委質疑，在兩方互相對峙、議事停滯的情況下，終於因為程序問題大打出手，引爆近年來罕見的議場肢體衝突。