- UK Border Agency (UKBA) staff dealt with a backlog of immigration cases so inefficiently that at one point 100,000 pieces of post were unopened.
- In March 2011, there were 147,000 unfinished cases that were passed to an audit unit tasked with dealing with the backlog.
- More than 150 boxes of post, including letters from applicants, MPs and lawyers, lay unopened.
- In a sample of 135 files examined as part of the inspection, each case had lain dormant for an average of 87 months before they were reopened in 2010 for consideration.
- The shortest period of inactivity was six months and the longest period of inactivity was 17 years and nine months.
- A total of 115 cases were found to have entered the UK illegally, and there were only 10 cases where active efforts had been made to trace absconders.
More top news
Police in Suffolk have confirmed they're dealing with a "significant incident" at RAF Mildenhall.
Two people have died and three others are in hospital after a fire broke out at the luxury Cameron House hotel.
Ugly Betty star Ashley Jensen is "devastated" after the death of her husband at the age of 60, her spokeswoman has said.