Witness protection programs are designed to safeguard individuals who have provided crucial testimony in criminal cases. These programs offer new identities, relocation, and support to ensure the safety of witnesses and their families from potential retaliation by criminals. Participants in these programs often include witnesses in high-profile cases involving organized crime, drug trafficking, or terrorism. By changing their names and moving them to different areas, law enforcement agencies aim to protect these individuals while allowing them to live normal lives away from danger.