Public police now use online and social media spaces as forums for communication. Drawing from discourse and semiotic analysis, and contributing to literature on police image management, we analyze police Instagram communications from five Canadian cities. Focusing on public police services’ Instagram posts, which are more indebted to visual communication than Twitter and Facebook, we examine the ways police communications frame community and diversity. Arguing that these communications resemble the fantastical authenticity found in other Instagram communications, we show how police mobilize images of community and diversity on Instagram to create positive affective relations with community. We argue that these communications amplify policing myths and operate to enhance police legitimacy. In the discussion, we assess what our findings mean for literatures on public police social media communications and policing myths.