The legal authority allowing for linewatch operations is defined under which INA provision?

The legal authority for linewatch operations is defined under INA 287(a). This provision specifically grants immigration officers the authority to enforce immigration laws, which includes conducting linewatch operations along the border. These operations are crucial for monitoring and controlling the flow of individuals crossing the border illegally, thus serving the primary purpose of border security.

Understanding INA 287 as a whole is important because it encompasses various aspects of enforcement authority. However, subsection (a) specifically provides the broad authority needed for activities like linewatch, as it details the responsibilities and powers of immigration officers in relation to apprehending individuals who may be entering the United States unlawfully. This necessity for effective monitoring is a fundamental part of border operations.