The damning report follows comments by the chairman of the Home Affairs Select Committee, Keith Vaz, earlier this month.
Mr Vaz said the number of unresolved cases that UKBA is dealing with - more than 300,000 - is "spiralling out of control".
He said: "There are now about the same number of cases awaiting resolution by UKBA as there are people living in Iceland."
More top news
Labour is promising to reverse the Conservative policy of privatisation in the NHS which it claims is creating longer waiting times.
The Queen and senior members of the monarchy will attend services around the world to commemorate the centenary of the battle of Gallipoli.
The Liberal Democrats have proposed to invest an extra £10 million in mental health care for military personnel