According to the Federal Constitution, each state is represented in the United States Senate by two senators usually elected directly by the qualified voters of the state. The number of representatives from each state in the United States House of Representatives is based upon the proportional population of each state to the others. According to the last national census, the state of Virginia is entitled to ten members in the United States House of Representatives, based upon its population in proportion to the other states. In order to determine the sections of the state each member will represent, the state legislatures usually are given the power to divide their states into Congressional election districts as well as state election districts. Therefore, the Virginia General Assembly has the power to apportion the State into Congressional districts. Virginia has, at the present time, ten Congressional election districts. The state Constitution provides that these districts must "be composed of contiguous (adjacent) and compact territory containing as nearly as practicable, an equal number of inhabitants." Section 58 of Article IV of the Virginia Constitution is considered so significant that it is required by the General Assembly to be included in the subject matter of all schools in the state. Its significance lies in the provisions included in this section which guarantee added protection to individual liberties by a series of prohibitions on the General Assembly itself. These prohibitions include the following: (1) The General Assembly cannot suspend the writ of habeas corpus unless when, in case of invasion or rebellion, such action is required for public safety. Habeas corpus, literally, is a Latin expression meaning "You have the body"; a writ is a written legal command or order. Therefore, a writ of habeas corpus is an official order commanding a person who has another person in custody to produce the body of such person who is being detained before a court; thus, any person arrested or otherwise detained upon suspicion of crime has the right to demand an immediate hearing in court with a view to determine officially whether or not there is adequate ground for his detention. If the prisoner is then believed to have been detained on insufficient grounds, he will be given his freedom; otherwise, he will be held for trial, with or without release on bail. Consequently, the writ of habeas corpus acts as a protection for each individual against possible illegal or unlawful imprisonment.