The number of foreign criminals avoiding deportation has risen by nearly a half, according to new figures.
Statistics show 4,030 foreign offenders were considered for deportation in the financial year 2012/13 but nearly a third - 1,310 - were not deported, up 47% on 890 who avoided removal in the previous year.
The figures, from a freedom of information request published by the Daily Mail, and excluding Scotland, show foreign offenders in 2012/13 who were not removed that year included 15 murderers, five guilty of manslaughter, 15 rapists, 140 convicted of robbery and 20 guilty of sex offences against children.
Before the Government came into power in the financial year 2009/10, 22% of foreign offenders avoided deportation, the figures show.
No reasons were listed for the failure to deport but it is thought that a large number of cases were brought on human rights grounds, such as possible mistreatment at home, or the right to a family life.
The Home Office said the recently-passed Immigration Act has made it harder for people to prolong their stay in the UK through repeated appeals.
The figures have been released as the Conservatives said last month that they will bring forward plans to curtail the role of the European Court of Human Rights in the UK.
A Home Office spokesman said: " Those who come to the UK must abide by our laws. We take all necessary steps to deport people who break our laws and in 2013 we removed over 4,600 foreign national offenders and more than 19,000 since 2010.
"Tough enforcement is the cornerstone of this Government's immigration policy. We strongly believe that foreign law-breakers should be removed from the UK at the earliest possible opportunity.
"Legal challenges and barriers are the most frequent reasons for removals failing. There will always be a large proportion of failures that the Home Office cannot affect if it is to remain compliant with its legal responsibilities.
"The recently-passed Immigration Act makes it easier to remove people from the UK and harder for individuals to prolong their stay with spurious appeals, by cutting the number of appeal rights from 17 to four."
The figures were released after Labour condemned a Home Office blunder that meant a double-murderer from Bangladesh can come to live in Britain.
The shopkeeper - known only as "ZR" - won his case to be granted entry on human rights grounds after a paperwork error by the department.
The man was convicted of murdering two people in Bangladesh in 1990 and sentenced to life imprisonment, but was released in 1997 due to a "general amnesty for good behaviour".
According to papers released by the immigration tribunal, he married a British woman in March 1998 and they had three children, all UK citizens.
In 2011, ZR applied to the Home Office to come and join his family, but was refused on the grounds that his admission was "not in the public interest".
The lower immigration tribunal then backed his case under Article 8 of the European Convention on Human Rights, which protects the "right to private and family life".
But although Government lawyers could still appeal to a higher authority, they failed to lodge the papers in time.