And to clarify - the concourt is the highest power in the land - with the duty of ensuring government abides by the constitution - both it's obligations AND it's limitations.

Since you generally (only in very specially circumstances) get to approach the concourt directly - ever other judge in the country from the town magistrate on upward is part of the chain of command of the concourt. 
When government is a plaintiff in a case, the judge is a higher power in our country. Government must abide by the decisions of even a magistrate sworn in yesterday.

And it goes beyond just the constitution - judges also have the power to ensure goverment abides by all other laws, including those passed by other branches of government or itself. 
Government CAN be found guilty of contravening it's own laws. If it then wants to change the law, it can, but the verdict will STILL stand.

The judge remains a higher power when it comes to legality of government policy.