Civil Liberties: These are basic rights and freedoms guaranteed to individuals as protection from any arbitrary actions or laws of the government. Examples include freedom of speech, right to privacy, right to fair trial etc.
National Security: This is a collective term for both domestic and international policies implemented by the government to ensure the safety and survival of its nation-state against any form of aggression or threat.
Public Safety: This refers to welfare and protection provided on local levels such as law enforcement agencies ensuring peace within communities through crime prevention strategies.