A prisoner, whether sentenced to imprisonment or committed to prison on remand or pending trial or otherwise, may be lawfully confined in any prison.

Prisoners shall be committed to such prisons as the Secretary of State may from time to time direct; and may by direction of the Secretary of State be removed during the term of their imprisonment from the prison in which they are confined to any other prison.

A writ, warrant or other legal instrument addressed to the governor of a prison and identifying that prison by its situation or by any other sufficient description shall not be invalidated by reason only that the prison is usually known by a different description.