Public health law focuses on the government's authority to protect the health of the population while respecting individual rights and liberties. It covers a wide range of areas including regulating health services, products, and environments. The objectives of public health laws are to control risks, promote disease prevention and access to healthcare. Sources of public health law include constitutions, legislation, regulations, case law, and international agreements at global, federal, and local levels of government. Public health laws are crucial for effective health system management and strengthening a nation's health infrastructure.