The most effective long-term programs last from two to six months. How long an individual might stay could depend an a variety of factors, including court orders, but should primarily be controlled...
Refugees and asylum seekers are kept in detention centres while authorities check to see if their claims for asylum are just and true. The must also pass character and health checks before receiving...
(in the US) It probably refers to a facility where illegal immigrants and persons fleeing their homeland but enter this country illegaly, are held awaiting processing.