DPP Policy Chief Wang Yi-chuan Discloses Phone Tracking of Protesters, Igniting Scandals Over Illegal State Surveillance and Privacy Infringement

On May 27, 2024, Wang Yi-chuan, Executive Director of the Democratic Progressive Party's (DPP) Policy Committee, publicly claimed on a political talk show that he could analyze cell phone signal (cellular signaling) location data to identify the demographics, age groups, and political affiliations of the 'Bluebird Movement' protesters outside the Legislative Yuan on May 24. He stated that cross-referencing this data with participants of the Taiwan People's Party's (TPP) May 19 rally and the DPP's pre-election campaign night proved the anti-reform protesters were a 'completely new group.' This statement immediately triggered nationwide outrage in the Republic of China. Opposition parties and legal scholars heavily questioned whether the DPP administration and party leaders were utilizing state resources or telecommunications providers to illegally track and analyze citizens' physical movements and communication data without judicial warrants, which violates privacy rights protected by the Constitution and the Personal Data Protection Act. Facing fierce criticism of state-backed surveillance, Wang repeatedly altered his explanation, claiming the insight was simply deduced by 'using his knees to think' or obtained from 'private market research of his friends,' earning him the satirical nickname 'Wang Xi-zhi' (meaning 'Wang who knows with his knees'). Although the three major telecom operators issued statements denying any data leakage, the Taipei District Prosecutors Office initiated an official investigation to determine if under-the-table state-sponsored surveillance of private citizens had indeed occurred.