When detainees were asked ther reason for coming to Taiwan, only 57 % mentioned illegal mainland immigrants and 42 % admitted to smuggling. Investigators have identified numerous loose ends in the testimony of many of the detainees, and suspect their motives in coming to Taiwan.
而據被捕者供述的偷渡原因中，打工者只佔百分之五十七，走私的佔了百分之四十二，其中還有不少人經偵訊單位發現供詞頗多疑點，對他的動機存疑。