The Doctrine of the Lesser Magistrates

When a State (through a ruling party) attacks citizens’ God-given rights and freedoms, can something be done about it? More specifically, when human authority directly contravenes God’s laws and instructions, must citizens accept such a tyrannical abuse of authority? Concerning civil government, what is the doctrine of the lesser magistrates, and what is interposition? Perhaps you must stand in the gap during a time of crisis.