Independent Monitoring Boards (IMBs) monitor the treatment received by those detained in custody to confirm it is fair, just and humane, by observing the compliance with relevant rules and standards of decency. IMBs exist in every prison and Immigration Removal Centre, as set out in statute. IMB members also monitor Short Term Holding Facilities at ports and airports and charter flights returning people with no right to remain in the UK to their country of origin.

IMB works with the Ministry of Justice.

http://www.imb.org.uk/