Purpose: The purpose of this study is to explore Swedish police education teachers' informal workplace learning and its perceived value for their professional development. Two categories of teachers, police teachers and university teachers, with different professional knowledge and experience, work together at the police education unit. Design/methodology/approach: The method used was in-depth interviews with teachers working at a Swedish police education unit. Findings: Informal workplace learning was perceived by both teacher groups to be of great value for gaining knowledge about the local practice and for their professional development. Their learning emerged in discussions, observations and practically oriented activities in their daily work. Four conclusions: firstly, the teachers' informal workplace learning was socially and practice-oriented and learning emerged in a collaborative, reciprocal and active process. Secondly, the embodied nature of the learning is evident in the teachers' joint activities in the teaching practice. Thirdly, it takes time and active involvement in the local practice to become a professional teacher in this kind of education. Fourthly, an educational structure where academic knowledge and experience can be integrated with police knowledge and experience constitutes an important basis for teachers' professional development in police education and training. Originality/value: The study's focus on police education and the professional development of teachers in this specific practice contributes to increased knowledge of the social, practice-oriented and embodied nature of informal workplace learning.