It is widely believed that there is a crisis of confidence in law enforcement in the United States. What remains to be seen, however, is whether adolescents actually differentiate between legal authorities and other types of authorities. Leveraging cross-sectional, nationally representative data of 12th graders from every year from 2006 to 2017 from Monitoring the Future (N = 10,941), the results indicate that adolescents distinguish between legal authorities (e.g., law enforcement, justice system) and social authorities (e.g., schools, religious institutions). Youth report more confidence in social authorities than in legal authorities. Furthermore, whereas confidence in social authorities remained largely stable between the cohorts over the last decade, confidence in legal authorities, and in law enforcement in particular, has declined markedly. Although there may be an era of mistrust in legal authorities, it cannot be attributed to a ubiquitous anti-authority attitude among modern adolescents in the United States.