This chapter offers a case-study of diversity and diversity policies within/nthe Mossos d’Esquadra, the police force of the Catalan autonomous community/nin Spain. The case is described in a comprehensive way (including/npolicies in all relevant policy areas: recruitment, retention, and promotion)/nand at the same time analyzed with a new analytical framework (including/nthe definition of diversity, the motivation for diversity within the organisation,/nand the facilitation of diversity within the organisation with policies)./nThe goal of the chapter is twofold. First, offer a deeper understanding of/nthe dynamics of diversity within this police force. Second, demonstrate the/nacademic potential of this new analytical framework.