“Tougher rules for migrant workers on temporary work visas will mean only the brightest and best can apply to settle in the UK. Immigration Minister Damian Green today announced new settlement rules that will break the link between migrants coming here to work and staying forever. The amount of time they can stay will now be capped at six years to prevent temporary work routes being abused.”
Home Office, 29th February 2012
Source: www.homeoffice.gov.uk