What was the name of Franco's secret police?

Franco's secret police were known as the "Servicio de Información Militar" (SIM) during the Spanish Civil War and later as the "Brigada Político-Social" (Political-Social Brigade) under his regime. These organizations were responsible for suppressing dissent, monitoring opponents, and enforcing regime policies through intimidation and violence. The SIM and the Brigada Político-Social played significant roles in maintaining Franco's authoritarian rule.