Labrum - a cover which may be loosely referred to as the upper lip. Mandibles - hard, powerful cutting jaws. Maxillae - 'pincers' which are less powerful than the mandibles. They are used to steady and manipulate the food. Labium - the lower cover, often referred to as the lower lip.
The President, as head of the federal executive branch, is ultimately in charge of enforcing the immigration laws of the United States. In turn, he must make discretionary decisions about whether and when to prosecute immigration law violators through deportation and other sanctions.
Immigration and Customs Enforcement is responsible for the enforcement of more than 400 statutes pertaining to immigration and the traffic of goods across national borders. The largest of the organizations within ICE are Homeland Security Investigations (HSI) and Enforcement & Removal Operations (ERO). ICE also manages the Office of State, Local and Tribal Coordination (OSLTC), Office of the Principal Legal Advisor (OPLA), and the Office of Professional Responsibility.