A Repressive State Apparatus, as defined by Althusser, refers to institutions like the military, police, courts, and prisons that maintain control over society through force or the threat of force. Althusser calls it repressive because these institutions enforce compliance using coercion and violence. For example, the police use physical force to arrest and punish those who break the law, ensuring the state’s power through direct suppression.
Ideological State Apparatuses are institutions like schools, media, religion, and family that shape people’s beliefs and values through ideology. They influence individuals by promoting social norms making them feel natural. For example, schools not only teach academics but also reinforce norms like respect for authority, which supports the existing social order.
The difference between Repressive State Apparatuses and Ideological State Apparatuses lies in their methods. Repressive State Apparatuses maintain power through direct force and using authority to impose compliance through threats or physical punishment. In contrast, Ideological State Apparatuses maintain power through shaping people’s thoughts and beliefs, guiding them to follow societal norms. While one relies on coercion and physical power, the other operates through influence and persuasion.

The Image above represents Repressive State Apparatuses at work. Police are using tear gas and physical force to maintain control. The goal is to ensure compliance and ultimately stop protestors from resisting and being defiant by continuing their movement.