Why has the MHA reimposed restrictions in three NE States? | Explained

What is the protected area regime? What did the Foreigners (Protected Areas) Order, 1958 stipulate? Did the ethnic violence in Manipur lead to imposing restrictions on movement and mobility?

​What is the protected area regime? What did the Foreigners (Protected Areas) Order, 1958 stipulate? Did the ethnic violence in Manipur lead to imposing restrictions on movement and mobility?