Taiwan society has experienced a so called quiet revolution. A strong wave of democracy and freedom tames the coercive authority of the country. It makes rulers can’t ignore the importance of public opinion. After democratization, public opinion as become one of terms. Public opinion has formed to be an essential foundation of government policies. During the transformation from coercive authority to democracy, the interaction of public opinion and law enforcement department incites a curiosity and attention of researchers in policing academics. The research, an untraditional public opinion survey, systematically collected and analyzed the opinions concerning policing actively issued by the public. Considering the feasibility and resource limit, this study chose Taoyuan county as the target field. A sum of 603 citizens’ complaints against the police has been primarily collected from “the magistrate’s mailbox” of Taoyuan County Government and “the mailbox of public opinion” of Taoyuan Police Department. The complaints’ content, typology, frequency distribution and government response were analyzed within this article. After the above analysis, questionnaire survey was conducted to examine the complainants’ perception of government response. A total of 296 valid questionnaires was collected and analyzed in this study. The purpose of this study is to explore the content of citizen’s complaint and government response, the association between citizen background variables and citizen complaint, and the complainants’ satisfaction of government response. This study found that complaints were able to be categorized into seven categories, such as traffic, social order, illegal occupying public space, police improvement advice, consultation, environmental protection, and others. Traffic, social order and illegal occupying public space explained the highest case percentage of the seven categories. Most complaint events occurred in urban area. Most complainants were male, 30 to 40 years old, businessman, labor or public official, college education level, probably official, college education level, probably with 1 to 3 times complaints experience. 91.89% respondents expressed that government provided the public convenient approach to issue complaint. 60.13% respondents agreed that government response was rapid. However, on the other hand, there were 57.77% respondents dissatisfied with government response. 65.88% respondents recognized that their complaints did not significantly make government solve problems. In order to increase the public satisfaction and decrease the complaints, government should pay problems. In order to increase the public satisfaction and decrease the complaints, government should pay more attention upon the substantial quality of response rather than the response time.