What is the significance of the "appropriate High Court" in this context?
In this context, the "appropriate High Court" refers to the High Court that will be responsible for overseeing the detention of a person under preventive detention laws. The appropriate High Court differs depending on who made the order of detention:

1. If the detention is ordered by the Government of India or an officer subordinate to it, the appropriate High Court is the High Court for the Union territory of Delhi.
2. If the detention is ordered by the Government of any State (other than a Union territory), the appropriate High Court is the High Court for that State.
3. If the detention is ordered by an administrator of a Union territory or an officer subordinate to such administrator, the appropriate High Court is the one specified by Parliament in this regard.