A surveillance warrant is a legal authorization granted by a court or relevant authority that permits law enforcement agencies to monitor an individual's communications, activities, or premises. This type of warrant is typically issued when there is reasonable suspicion or probable cause to believe that a person is involved in criminal activity. Surveillance warrants are crucial in cybersecurity and criminal investigations, as they allow authorities to intercept phone calls, emails, or other electronic communications, and sometimes to conduct physical surveillance. The warrant outlines the scope, duration, and methods of surveillance, ensuring that monitoring is conducted within legal boundaries and with respect for privacy rights. Without such a warrant, unauthorized surveillance is generally considered illegal.