Цель: to analyze the far-right extremism’s anti- government ideology as an external threat to law enforcement officers. Methods: dialectical approach to cognition of social phenomena, using the general and specific research methods based on it. Results: The relationship between far-right extremism and law enforcement in the United States has a long and complicated history. In 2020, this relationship was on display as both far-right extremists and law enforcement agencies were brought into the national spotlight for their roles in multiple unprecedented events. This research discusses how far-right extremism’s anti- government ideology represents an external threat to law enforcement officers. This threat is discussed through the presentation of 30-years of data on law enforcement officers killed in the line-of-duty by far-right extremists from the Extremist Crime Database. In addition, the research also examines law enforcement’s implicit and explicit support for far-right extremism, which creates an internal threat against the legitimacy of the profession. Finally, policy initiatives that come from, and build upon, prior research are discussed to reduce these threats.Scientific novelty: for the first time, the work substantiates that far-right extremists threaten the safety of law enforcement officers in the United States. Antigovernment extremists, who do not believe that they are subject to the laws of the jurisdiction where they live, pose the risk of escalating to violent acts when encountering law enforcement when they engage in both ideologically motivated and routine criminal activity. In addition, law enforcement agencies who hire far-right extremists face the very real prospect of becoming illegitimate in the eyes of the communities to whom they are sworn to serve and protect. Decades of criminological research has shown that lack of trust in law enforcement makes the job of policing a community more difficult and more dangerous. Although multiple paths forward were outlined that build on prior research and empirical knowledge, only decisive action by law enforcement and policymakers will result in outcomes that reduce the risk of external violent victimization to police and protect law enforcement agencies from being delegitimized by the presence of far-right extremists within their ranks.Practical significance: the main provisions and conclusions of the article can be used in scientific, pedagogical and law enforcement activities when considering issues related to the prevention, suppression and investigation of extremist crimes.The article was first published in English language by Criminology, Criminal Justice, Law & Society and The Western Society of Criminology Hosting by Scholastica. For more information please contact: CCJLS@WesternCriminology.org.For original publication: Parkin, W. S., Mills, C. E., Gruenewald, J. (2021). Far-Right Extremism’s Threat to Police Safety and the Organizational Legitimacy of Law Enforcement in the United States, Criminology, Criminal Justice, Law & Society, 2021, Vol. 22, No. 2, pp. 1–24. Publication URL: https://ccjls.scholasticahq.com/article/26321-far-right-extremism-s-threat-to-police-safety-and-the-organizational-legitimacy-of-law-enforcement-in-the-united-states