There is an inherent and inevitable tension between police powers and human rights. Adequate police powers are necessary to allow the police to fulfil their tasks; but exercise of such powers will necessarily interfere with the right of respect for private life and must therefore be proportionate to the aim to be achieved. The fundamental argument underlying this thesis is that privacy is valuable, either in its own right, or as a necessary prerequisite for sustaining more fundamental rights. Yet privacy also has costs: the greater the individual 'sphere of privacy', the narrower the scope for obta ining and utilising personal data for societal ends e.g. in this context the suppression or punishment of criminality. It is necessary, therefore, at an early stage in the thesis to undertake a contextual overview of expressions of the concept and value of privacy in Western liberal democracies. Establishing why privacy and privacy rights may be worthy of defence, both for individuals as well as for society as a whole, provides a framework for determining what must necessarily fall within the scope of privacy for that value to be realised . This thesis advocates an approach based on the identification and application of a general underlying principle of privacy and the shaping of the future evolution of the law in line with such a principle. New police information systems or new forms of personal data processing for police purposes do not emerge into an informational vacuum; on the contrary, they merge with and draw upon existing systems of data collection and processing, which are themselves evolving, e.g. computer records of people's bank transactions, their telephone calls, their activity on the Internet, their medical conditions, their education and employment histories etc. The thesis thus provides an overview of the pan-European police information systems already deployed, or planned to be deployed, with the aim of creating for the reader a cognitive map of a complex interaction of systems within which personal data is already collected, stored, shared and/or exchanged on a daily basis, exploring along the way the data protection regimes within those structures. The central themes of the thesis rest upon analysis of the influence of the CoE Recommendation R(87)15 on Regulating the Use of Personal Data in the Police Sector which provides a sector-specific application of the data protection principles established in the CoE Convention for the Protection of Individuals with regard to Automatic Processing of Personal Data. To provide the reader with context for interpreting the empirical research findings, the thesis traces the history of the drafting of Recommendation R(87}15, based on research amongst materials drawn from the CoE's archives in Strasbourg. The findings of the empirical research - resulting from analysis of responses to a questionnaire deployed to Data Protection Authorities or Ministries of Justice in all member States of the CoE, exploring the implementation or otherwise of R(87}15 in each State - provide, for the first time, in a snap-shot, a census of where European legislation stands as regards processing of personal data for police purposes, as the European Union progresses beyond the first pillar/third pillar dichotomy in the post-Lisbon Treaty era. To further inform this analysis, the questionnaire findings were supplemented by in-depth semistructured interviews with domain experts from national data protection authorities, or law enforcement authorities, in select States. ii Based on the forgoing analysis, the thesis outlines aspects of the current legal regime that should be updated or improved, primarily in the context of the reform of the EU data protection framework, with a special focus on data processing in the police and criminal justice sector. This analysis identifies the extent to which the principles of Recommendation R(87)15 have been adopted, adapted, strengthened, weakened or abandoned in the current EU reform proposals. The provisions of Recommendation R(87)15, especially those which reinforce the principles of necessity, proportionality and purpose-specification/limitation are "an inalterable necessary minimum," 1 even for police and security forces. Yet it is argued that this "necessary minimum" is too minimal, and that changed circumstances make it advisable to further strengthen and expand the provisions of Recommendation R(87)15. The thesis concludes that the central question to be asked when restrictions on a fundamental right are concerned is: "How much limitation of a fundamental right is permissible in a democratic constitutional state in which fundamental rights are a constitutive element?" As such it is a modest contribution to the big questions facing our societies regarding the kind of society we want to build, and the kind of policies we need to put in place to reach our goals.

We are currently at a point in time in Australia where questions concerning how to govern police have never been more pressing or more fluid. Systemic corruption has been identified in several states; a range of new accountability mechanisms have been established internal and external to police and in Victoria police corruption has been linked with a violent 'gangland war'. This thesis locates these contemporary developments within a broader analysis of the historical circumstances shaping the changing techniques for governing state police. More specifically, this thesis engages in a detailed comparative study of the changing techniques of governing police in Queensland and Victoria. The theoretical tools to conduct this analysis are drawn from 'governmentality studies'. This refers to a broad grouping of theoretical scholarship concerned with the changing ideas - or 'political rationalities' - on how to govern some thing or some activity, and the underlying reasoning, justifications and ambitions contained within the practical tools or 'techniques' used to govern. Central to the thesis is an argument that a new politics of policing has emerged recently, one that extends the dyad of the old accountability - 'police powers' and 'external accountability' - to a pluralisation of accountability processes and structures. The thesis argues that governmentality studies offer new insights into ways of analysing the techniques for governing state police, increasingly shaped by the managerialisation of governing and embodying efforts to make police innovative, risk-taking problems-solvers. This is what I refer to as an open-ended normative project for re-making the entrepreneurial officer. However, a detailed examination of the development of governmental techniques for 'making up' the entrepreneurial officer indicates that such a governmental project is not implemented unproblematically. Nonetheless, the thesis concludes that the attempts to remake the entrepreneurial officer through the managerialisation of governing presents distinct possibilities for a new 'politics of policing' that fosters deliberative, reflective police practice within a new framework of police accountabilities.

Due to the great change of Taiwan social environment, values are seriously distorted. Many adolescents would gather together at holiday nights for dangerous driving on road (racing) which not only causes gridlock on road and interferes traffic seriously, what¡¦s worse is these youths even attack the public, police officers on duty and related competed agency with force. This behavior not only violates legal regulations but damages social security severely, threatens citizens¡¦ life, body and property safety. Since the role of police officer serves as the function of social security maintenance, to clamp down and hold back dangerous driving is one important segment for the exercise of police powers. The exercise method of police powers in Taiwan has been reformed greatly due to the change of political and economical situation. During Martial Law Period, to meet the demand, this nation conferred authority on police officers to great extension. The nature of duty enforcement also belonged to regulation, clampdown, and penalty with compulsive implementation upon enforcement. However, the delegation scope pursuant to law is unspecific and the requirement of enforcement is general, human right violation controversy is often occurred. Till Interpretation of Shih-Zih No. 535 made by Grand Justice of Judicial Yuan, police authority then faces the importance of administrative procedure and is able to step forward to a country of nomocracy. With the promotion from all circles, ¡§Act of Exercise of the Police Powers¡¨ of Taiwan was effected on Dec. 1, 2003, herein not only regulates specifically the definition, function of power limits and implementation method of police officer, it also stipulates the practical measures of civil rights adopted for police powers exercise in proclamation to demand police officers to be in compliance with principle of proportionality while exercising authority. It also bestows the legal basis on police powers exercising that can look after both the insurance of human right and the maintenance of police safety which really possesses groundbreaking meaning of a time. Only that whether the formulation of the said act in practical really indicates the dangerous driving prevention legal system of police officers has already achieved its perfection worth the further research and exploration by this study. Administrative law is deep and profound as well as extensive and infinite and hasn¡¦t formed a complete administration law till now. Only that with observation from the method and principle of administrative act, it can be divided into five main structures of Basic Principle, Organization Framework, Limit of Administrative Rights, Administrative Relief, and Administrative Surveillance. Any administrative legal system pursuits to achieve its perfection, it then shall be analyzed by the five main structures of administrative act. Therefore, the five main structures of administrative act serve as the center in this study to examine the dangerous driving prevention legal system of police officer and review the practice method of police authority and compare to current relative decrees and regulations, expecting police officers can work out the problems concerning to the requirements of power exercise and procedure and to be advantageous to the reinforcement of dangerous driving prevention. Under this pattern of thought, this study tries to examine all systems upon dangerous driving prevention and clampdown of Taiwan police officers from the angle of administrative act with the said five main structures of administrative act basic principles as the research method in this study. The main frameworks of this study are divided into seven chapters respectively: Chapter 1 Introduction To bring forth the dubious interpretation of current dangerous driving prevention reinforcement by police authority firstly to explain the research motive, purpose, research scope, limits, research method, framework, the determination of related terms, and so on. Chapter 2 The Basic Principle of Dangerous Driving Prevention Legal System of Police Officer. To interpret the concept and definition of dangerous driving firstly and then bring forth the cruxes in reality and data analysis against the four aspects of society with actual phenomena, economy with most appropriate adjustment, politics of interrogation and legal system of decrees and regulations to make us understand the establishment background of dangerous driving prevention legal system of police officers. And further to compliment with Japan dangerous driving prevention system, the analysis of international aspect to adopt the successful experiences of dangerous driving prevention in foreign countries; and then explore the nomocracy of dangerous driving legal system of police officers from the angle of three principles of administrative act and seven principles of procedure justices to discuss the related legal basis and regulations concerning police power exercise; and finally explore the participation of relative parties of dangerous driving prevention legal system of police officers, expecting to assist police officers in the reinforcement of dangerous driving prevention with the participation of the public to make the dangerous driving prevention legal system more complete. Chapter 3 The Organization Framework of Dangerous Driving Prevention Legal System of Police Officer To explore current central and local police administrative organization to deep understand the problems of organization framework, personnel system and fund budget of police authority, expecting to establish complete organization framework for the advantages of practical operation of dangerous driving prevention of police authority. Chapter 4 The Limit of Administrative Rights and Implementation of Dangerous Driving Prevention Legal System of Police Officer Traditional clampdown with penalty and other administrative actions exempted from high power type are included. The types and meaning is to be explored against the regulation items of seven ¡§Administrative Procedure Law,¡¨ including Administrative Investigation, Administrative Plan, Administrative Legislation, Administrative Penalty, Administrative Contract, Administrative Instruction, and the insurance of Administrative Duty Reinforcement that is helpful for the clear-up of the requirements and procedures of police power exercise. Chapter 5 The Relief and Solutions to Problems Arising from Dangerous Driving Prevention Legal System of Police Officer According to the different categories of agency receiving relief procedures, they can be divided into the administrative relief within and outside administrative system. Start from the relief system of compliant, declaration against different opinions and petition; and then discuss the administrative suit system outside administrative system; and then continue to compliment other relief ways of petition and pleading; and finally to explore national compensation, constitute interpretation and public vote one by one to cover all surveillance rights of people in details. Chapter 6 The Administrative Surveillance of Dangerous Driving Prevention Legal System of Police Officer Due to quality and quantity changes of modern country administration, the necessity of administrative control increases day by day. Complete administrative surveillance legal system consists in exploring the supervising system of inspect, supervise, political affairs and sales within police authority and outer supervising system of power, the public, opinion and social groups. With the supervising function of administrative surveillance to expect the work of dangerous driving prevention of police officer would meet the demand of nation, society and people in the respects of legal system and effects. Chapter 7 Conclusion and Suggestion To bring forth problems discovered after research and propose suggestions for improvements against dangerous driving prevention for the reference of police officers upon the reinforcement.

In recent times, the Supreme Court of Canada has utilized the ancillary powers doctrine as a means of expanding police powers at common law. Less apparent is the fact that the proliferation of these coercive powers has been achieved solely on the basis of the Court’s unorthodox—and, indeed radical—use of precedent. Put shortly, it is my thesis that the ancillary powers doctrine has precipitated the undemocratic expansion of both state and judicial power. The actual powers created by the Court are, in themselves, fraught with deficiencies and incapable of delivering on the twin promises of providing fairness and predictability in the law. This is due to the fact that any ad hoc judge-made power will be created retrospectively and shown to lack comprehensiveness. Correspondingly, the constitutional protections available to Canadians have waned in strength, leaving them more susceptible to governmental intrusion. In constructing this thesis, I have reviewed both the historic and contemporary case law that has forged the ancillary powers doctrine in Canada. Significantly, the emergence of this doctrine could not have occurred without Parliamentary acceptance and condonation of the Court’s actions. However, it is on the basis of the Court’s perception that Parliament has failed to close off supposed “gaps” in police powers that the Court has been willing to enter the lawmaking fray. Moreover, the Court’s actions have effectively obviated the need for government to legislate and prospectively stipulate the powers possessed by its agents. Therefore, I have situated this institutional interplay within the “theory of gaps” devised by Hans Kelsen. This model is offered as a plausible explanation for how Waterfield/Dedman became conceived in Canada and, why, it has been permitted to take root. Importantly, the Kelsenian analysis that I advance is explanatory only. It does not present a defence or justify for the proliferation of common law powers in favour of the police or judiciary. The lawmaking paradigm, as described above, has had a pernicious effect upon constitutionalism in Canada. It is for this reason, I argue that the ancillary powers doctrine holds an illegitimate place in Canadian law, and should be reversed.

En droit, l’abandon de l’immeuble présente deux facettes toutes les deux attachées à l’exercice de la propriété. Un premier niveau consiste, pour le propriétaire d’un bien, à pouvoir en disposer et, dans ce cadre, décider valablement de renoncer unilatéralement à sa propriété. Le sort du bien abandonné est alors fixé par le législateur qui prévoit, à défaut de dispositions spéciales, leur attribution à la Commune sur le fondement de l’article 713 du Code civil. L’exercice du droit de propriété peut aussi consister pour son titulaire, libre d’user ou non de son bien, à s’en désintéresser, à ne pas l’entretenir et le réparer. Ce deuxième aspect de l’abandon de l’immeuble est alors entendu dans le sens usuel du terme.Comme la renonciation au droit de propriété, la renonciation à son usage n’a de bornes que le respect des droits d’autrui et de la collectivité. Le maintien de l’ordre public constitue une limite traditionnelle à l’exercice des attributs du droit de propriété immobilière. Or, un immeuble qui n’est pas entretenu finit, au fil du temps, par se délabrer, tomber en décrépitude et menacer de s’effondrer, risquant alors de porter atteinte à la sécurité des passants et de ses occupants. Ce constat fait et en érigeant la notion d’ordre public comme axiome de la recherche, il est alors possible de définir l’immeuble privé abandonné en droit administratif.Cet essai de définition entraîne inévitablement une deuxième question : celle du rapport existant entre l’immeuble délaissé et le maire, autorité de police municipale obligée d’intervenir en cas de trouble public suffisamment grave dans sa commune. C’est le manque de temps, l’imminence du péril, alliée à la proximité du maire avec le désordre, qui fonde un rapport naturel d’autorité entre eux ainsi que le caractère irréductible de la compétence du maire face à l’immeuble privé abandonné. / In law, the abandonment of the building has two facets both attached to the exercise of the property. A first level is for the owner of a good to be able to dispose of it and, in this context, decides validly to renounce unilaterally his property. The fate of the abandoned property is then fixed by the legislator, which, in the absence of special provisions, provides for their allocation to the Commune on the basis of Article 713 of the Civil Code. The exercise of the right of ownership may also consist of the owner, free to use or not to his property, to lose interest, not to maintain and repair it. This second aspect of the abandonment of the building is then understood in the usual sense of the term.Like the renunciation of the right of property, the renunciation of its use is limited only by the respect of the rights of others and of the community. The maintenance of public order constitutes a traditional limit to the exercise of the attributes of the right to real property. In the course of time, a building that is not being maintained eventually decays, falls into disrepair and threatens to collapse, threatening to undermine the safety of passers-by and its occupants. This finding, and by establishing the notion of public order as an axiom of research, makes it possible to define the abandoned private building in administrative law.This definitional test inevitably involves a second question: the relationship between the abandoned building and the mayor, a municipal police authority obliged to intervene in the event of a sufficiently serious public disturbance in its commune. It is the lack of time, the imminence of the danger, combined with the mayor's proximity to the disorder, which establishes a natural relationship of authority between them and the irreducible character of the mayor's competence in front of the private building abandoned.

O propósito deste trabalho é analisar a regulação jurídica brasileira da intervenção do Estado, por meio da tributação, sobre a economia. Esta tarefa se desenvolve em três momentos teórico, dogmático e histórico/institucional que se estendem ao longo dos três capítulos do trabalho, respectivamente. O primeiro momento lida com a dimensão doutrinária jurídica de análise, interpretação, metodologia e abordagem deste fenômeno. Buscamos recuperar historicamente a trajetória da doutrina do direito tributário brasileiro em contraposição à doutrina do direito econômico brasileiro, recuperando o conceito de extrafiscalidade como ponto limite da doutrina tributária e ponto de partida para uma análise sistemática da intervenção estatal pela tributação. O segundo momento é a tentativa de traçar uma abordagem pertinente para essa análise da extrafiscalidade tributária pelo direito econômico, problematizando-a à luz do ordenamento brasileiro, sobretudo, em nível constitucional. Para tanto, assumimos as categorias de Eros Roberto Grau, sobre a intervenção estatal na economia, e as de Richard A. Musgrave, sobre as finalidades da política fiscal, para aprofundarmos a classificação do fenômeno quanto à sua forma (indução), suas técnicas (oneratórias/ desoneratórias), suas finalidades (extrafiscalidade alocativa/ extrafiscalidade distributiva/ extrafiscalidade estabilizadora) e seu regime de competências. O terceiro momento remonta um panorama da evolução histórica do sistema tributário nacional, seus principais diplomas normativos, encadeado em uma narrativa que envolve os atores, interesses, ideias e modelos institucionais e jurídicos adotados pelo Brasil, principalmente em torno do federalismo fiscal. Por fim, concluímos haver uma tendência à separação progressiva do regime jurídico da fiscalidade e da extrafiscalidade, por conta da própria trajetória econômica, política, histórica, normativa e institucional do sistema tributário brasileiro. Fato diante do qual resta ao conhecimento jurídico, como saber tecnológico que é, reconhecer, compreender, se aprofundar e performar. / The purpose of this paper is to analyze the legal regulation of the Brazilian state intervention through taxation on the economy. This task is unfolded in three parts - theoretical, dogmatic and historical/ institutional - that are developed in the three chapters of the work, respectively. The first deals with the doctrinal legal dimension of analysis, interpretation, methodology and approach of this phenomenon. We seek to recover the historical trajectory of the Brazilian tax law doctrine in contrast with the Brazilian economic law doctrine, recovering the concept of taxation based on police powers as a threshold point of the tax law doctrine and a starting point for a systematic analysis of state intervention through taxation. The second part is an attempt to draw a pertinent approach to the analysis of the taxation based on police powers by the economic law doctrine, questioning it under the lens of the Brazilian legal system, especially at the constitutional level. Therefore, we assume Eros Roberto Graus categories about the state intervention in the economy, and Richard A. Musgraves categories about the aims of fiscal policy, to further classify the phenomenon by its shape (induction), its techniques (overtax/ exonerate), its purposes (allocative/ distributive/ stabilizer) and its regime of competence. The third part is an overview of the historical evolution of the Brazilian tax system, its main laws and regulatory instruments, through a narrative that involves actors, interests, ideas, and institutional and legal models adopted by Brazil, particularly around fiscal federalism. Finally, we conclude that there is a tendency to a progressive separation between the legal regime of taxation based on revenues and of the legal regime of taxation based on police powers because of the economic, political, historical, normative and institutional trajectory of the Brazilian tax system. As a consequence of that, we believe that legal thought should, as technological knowhow, recognize this fact, understand it, deepen it and perform it.

O propósito deste trabalho é analisar a regulação jurídica brasileira da intervenção do Estado, por meio da tributação, sobre a economia. Esta tarefa se desenvolve em três momentos teórico, dogmático e histórico/institucional que se estendem ao longo dos três capítulos do trabalho, respectivamente. O primeiro momento lida com a dimensão doutrinária jurídica de análise, interpretação, metodologia e abordagem deste fenômeno. Buscamos recuperar historicamente a trajetória da doutrina do direito tributário brasileiro em contraposição à doutrina do direito econômico brasileiro, recuperando o conceito de extrafiscalidade como ponto limite da doutrina tributária e ponto de partida para uma análise sistemática da intervenção estatal pela tributação. O segundo momento é a tentativa de traçar uma abordagem pertinente para essa análise da extrafiscalidade tributária pelo direito econômico, problematizando-a à luz do ordenamento brasileiro, sobretudo, em nível constitucional. Para tanto, assumimos as categorias de Eros Roberto Grau, sobre a intervenção estatal na economia, e as de Richard A. Musgrave, sobre as finalidades da política fiscal, para aprofundarmos a classificação do fenômeno quanto à sua forma (indução), suas técnicas (oneratórias/ desoneratórias), suas finalidades (extrafiscalidade alocativa/ extrafiscalidade distributiva/ extrafiscalidade estabilizadora) e seu regime de competências. O terceiro momento remonta um panorama da evolução histórica do sistema tributário nacional, seus principais diplomas normativos, encadeado em uma narrativa que envolve os atores, interesses, ideias e modelos institucionais e jurídicos adotados pelo Brasil, principalmente em torno do federalismo fiscal. Por fim, concluímos haver uma tendência à separação progressiva do regime jurídico da fiscalidade e da extrafiscalidade, por conta da própria trajetória econômica, política, histórica, normativa e institucional do sistema tributário brasileiro. Fato diante do qual resta ao conhecimento jurídico, como saber tecnológico que é, reconhecer, compreender, se aprofundar e performar. / The purpose of this paper is to analyze the legal regulation of the Brazilian state intervention through taxation on the economy. This task is unfolded in three parts - theoretical, dogmatic and historical/ institutional - that are developed in the three chapters of the work, respectively. The first deals with the doctrinal legal dimension of analysis, interpretation, methodology and approach of this phenomenon. We seek to recover the historical trajectory of the Brazilian tax law doctrine in contrast with the Brazilian economic law doctrine, recovering the concept of taxation based on police powers as a threshold point of the tax law doctrine and a starting point for a systematic analysis of state intervention through taxation. The second part is an attempt to draw a pertinent approach to the analysis of the taxation based on police powers by the economic law doctrine, questioning it under the lens of the Brazilian legal system, especially at the constitutional level. Therefore, we assume Eros Roberto Graus categories about the state intervention in the economy, and Richard A. Musgraves categories about the aims of fiscal policy, to further classify the phenomenon by its shape (induction), its techniques (overtax/ exonerate), its purposes (allocative/ distributive/ stabilizer) and its regime of competence. The third part is an overview of the historical evolution of the Brazilian tax system, its main laws and regulatory instruments, through a narrative that involves actors, interests, ideas, and institutional and legal models adopted by Brazil, particularly around fiscal federalism. Finally, we conclude that there is a tendency to a progressive separation between the legal regime of taxation based on revenues and of the legal regime of taxation based on police powers because of the economic, political, historical, normative and institutional trajectory of the Brazilian tax system. As a consequence of that, we believe that legal thought should, as technological knowhow, recognize this fact, understand it, deepen it and perform it.

The implementation of the stop-and-frisk duty of the police is extremely closely related to the intervention of people¡¦s freedom of action, privacy and moral integrity right. In the past, the basis of law for the fulfillment of the stop-and-frisk duty by the police authorities was only the ¡§Regulations of the Police Duties.¡¨ Nevertheless, the Regulations contained no content of the objective for initiating the stop-and-frisk duty, the stop-and-frisk procedures and the means of relief. The Regulations only mention the term of stop and frisk, but lack the soul and body of stop and frisk. Based on the term of stop and frisk, the police always legitimized the enforcement of many banning acts, such as searching the house of a citizen in the midnight in the name of fulfilling the stop-and-frisk duty of the household. Similar behaviors were frequently found, thus creating many complaints from the citizens. After the chancellor of Judicial Yuan made an explanation of Shih No. 535, a lot of feedbacks from the police were undoubtedly created. To Taiwan, this is a great leap in marching towards a country under the rule of law. It has made the police authorities understand the importance of administrative procedures, and urged the birth of ¡§Act of Exercise of the Police Powers.¡¨ In the new Act, the behavior of stop and frisk is replaced by the term ¡§checking of identity.¡¨ A local scholar, Wu Keng once mentioned that ¡§stop and frisk¡¨ had been abolished and not been used. However, is it the fact? This paper is going to investigate the issue. Besides, does the constitution of the Act mean that the stop-and-frisk legal system is sound enough? This is another issue worthy of studying. Due to the vastness and un-limitedness of Administration Act, there is no country in the world having a sound and complete Administration Act. Nevertheless, viewing at the theories and principles of Administration Act, it can be generally divided into five main structures: basic principles, administrative organization, limit of administrative rights, administrative relief and administrative surveillance. If an administrative legal system is fearless to receive the examination based on each item of the five main structures of Administrative Law, it can be called a sound and complete administrative legal system. Another local scholar, Li Chen-Shan thinks that the separation of criminal law from Administration Act has led to the division of the police¡¦s mission of maintaining public security into two parts: ¡§prevention of harm¡¨ and ¡§criminal arrest,¡¨ which prevents the administrative harm and the criminal harm respectively. While they cross over the administrative area and the criminal area, stop-and-frisk duty belongs to an administrative behavior. Since it just belongs to the ¡§prevention of harm,¡¨ it should be regulated by the theories and principles of Administration Act. Therefore, this paper takes the stop-and-frisk legal system of police officers as the main body of the study. From the viewpoint of the science of law, this paper employs the abovementioned basic theories of Administration Act, i.e. the ¡§five major structures¡¨ of administrative principles, administrative organization, limit of administrative rights, administrative relief and administrative surveillance, as the research approaches of the study to examine the stop-and-frisk system of the police officers of Taiwan. Under this mode of thinking, the study is divided into seven chapters. Chapter 1 is Introduction, which firstly raises queries over the practice of fulfilling stop-and-frisk duty by the police authorities, and then introduces the motives, objectives, research approaches, research area and research structure of the paper. Chapter 2 is Basic Principles of Stop-and-Frisk Legal System, which firstly reviews the basic concepts of the two terms, the police and stop and frisk, and then investigates the background for the constitution of stop-and-frisk legal system. In this chapter, substantial information from the social aspect of the practical phenomena, the economic aspect of the optimal adjustment, the political aspect of negotiation and compromising, and the legal aspect of acts and regulations, is presented, enabling us to have a deeper understanding of the practical phenomena of stop-and-frisk legal system. After that, the chapter analyzes and compares the international aspects of the stop-and-frisk legal system of three countries, Germany, Japan and the United States, so as to take them as the references for the improvement of local legal system. Then, the chapter investigates the concepts of the rule of law of stop-and-frisk legal system, as well as the nature of stop and frisk from the angles of the three administrative principles according to laws and the seven principles of procedural justice. Finally, the chapter explores the relationship between stop-and-frisk legal system and the participation of the parties concerned. It is hoped that through the participation methods of the parties concerned, the stop-and-frisk legal system can become more sound and complete. Chapter 3 introduces the administrative organization of stop-and-frisk legal system by starting from the organizational structure of the existing police organization, and then investigates the organizational structure of the police authorities, staff on duty (including the assistants on duty), the budget and other problems. It is expected that a complete organizational structure can be formed to achieve a smooth operation of the stop-and-frisk practices of police officers. Chapter 4 discusses about the design and use of the limit of the rights of stop-and-frisk legal system. The chapter investigates each item stipulated in Administrative Procedure Act,¡¨ including the administrative plan, administrative legislation, legislative punishment, administrative investigation, administrative agreement, administrative guidance and the fulfillment of administrative obligations, hoping to make a comprehensive investigation of the limit of the stop-and-frisk rights. Chapter 5 introduces the relief and problem-solving measures of stop-and-frisk legal system. There is an ancient saying about law, ¡§Where there is right, there is relief.¡¨ This chapter firstly mentions the right of dissent, and then discusses about the issues of pleading, administrative lawsuit, national compensation, compensation of loss and referendum, intending to cover every detail of the rights of citizens. Chapter 6 talks about the administrative surveillance of stop-and-frisk legal system, and investigates the internal surveillance mechanism of the police authorities themselves and the external fair surveillance mechanism of the third parties. It is hoped that the surveillance mechanisms can meet the national and public requirements, no matter from the legal facet or the practical facet. Chapter 7 is the Conclusions and Suggestions, which synthesize the researcher¡¦s discussion of the five main structures of Administration Act. Over some specific items of the existing stop-and-frisk legal system of the police officers that need to be revised or deleted, the chapter proposes concrete suggestions, which can be a reference for the police authorities in exercising their powers, and working on the goals of building the administrative standards of Taiwan according to law, and improving the legal image of Taiwan under the rule of law.