Under the separation of powers, each branch of government has a specific function. The legislative branch—the Congress—makes the laws. The executive branch—the president—implements the laws. The judiciary—the court system—interprets the laws and decides legal controversies.
Judicial review is the power of the courts, as part of the system of checks and balances, to look at actions taken by the other branches of government and the states and determine whether they are constitutional.
The builder is at fault, however if there is no legal document that he has signed to say that he would complete the work and help them, then he isn’t liable.
