How is the judiciary structured and what are its powers

The judiciary consists of Supreme Court and the associated lower courts. Every country has its own Judicial Structure. The most common Judicial structure consists of a Supreme Court, which is the most highest court of the country. Then there comes the High Court which is under supreme court, then comes the Civil court and the associated other lower courts. The supreme court has the power to make amendments in the laws if anything is happening against the constitution. Supreme court can determine what federal laws mean, and can revert or overturn them if they are unconstitutional. Supreme Court is the Supreme Authority and has the supreme powers in a Judiciary and country.