Civil liberties shape the scope of government power by defining the rights and freedoms that citizens possess against state interference. Protections such as freedom of speech, press, and assembly establish a framework where individuals can express dissent without fear of repression. This balance allows citizens to hold power accountable, thus restricting government overreach. When civil liberties are upheld, they foster an environment of transparency and promote democratic governance. However, limitations on civil liberties can expand government authority and diminish individual rights, potentially leading to authoritarianism.