The idea that government is not above the law is an example of
rule of law.
federalism.
limited government.
guaranteed rights.

The rule of law. The concept of the rule of law is that the law of the land is supreme and even the government officials are not allowed to bend it. Rather, it is the job of the government officials to implement the law and also follow it as they do their jobs. 

Concurrent jurisdiction is the ability to exercise judicial review by different courts at the same time, within the same territory, and over the same subject matter. for instance, a domestic violence matter may be heard in either a general civil court or a family court in the same county.i hope that this you : )

Absolute !