Home Secretary Theresa May will split up the UK Border Agency.
She says the Border Force has been working more effectively since it was split from the UK Border Agency last year.
The peformance of UKBA is "not good enough". The home affairs committee has published many critical reports on it.
It was never suited to deal with the way immigration numbers rose under Labour.
• May says the UK Border Agency is being set up.
• Two new organisations will replace it: an immigration and visa service, and an immigration and law enforcement organisation.
• Both new bodies will not have agency status. They will be part of the Home Office, and will report to ministers.