Revealed: Cameron has broken his pre-election promise on foreign criminals as FEWER are deported In 2010 5,342 were deported, but in 2012 the figure will be around 4,509 One in eight inmates is now foreign, costing £500million a year to house Cameron had promised that he would 'intervene personally' on the issue A Labour spokesman said that Cameron's promises 'ring hollow' Fewer foreign criminals are being deported despite a pledge by David Cameron more than two years ago to "intervene personally." Since 2010 there has been a spectacular fall in the number sent home after committing serious offences here. In the year of the General Election, 5,342 were deported. In 2011, in the Coalition's second year of office, the figure was down 13 per cent to 4,649. Broken: The Prime Minister has failed to deport foreign criminals as he promised Figures from the first three quarters of 2012 show that 3,382 were deported. If the trend continued in the final quarter, it would mean the 2012 total is around 4,509 - again, down on the previous year, and 16 per cent down on the election year figure. Last year the number of foreign prisoners in our jails went up. The number stood at 10,861 as of June 2012, up from 10,779 the year before. It is the first time in at least four years that the number of foreign prisoners in our jails has increased. One in eight inmates are now foreign nationals - costing almost £500million a year to house. Failure: Labour spokesman Sadiq Khan said that Cameron's promises have rung hollow In September 2010, Mr Cameron pledged he would "intervene personally" to ensure convicted offenders are sent home to spend the rest of their sentences in their own country. In October last year the Daily Mail revealed that since the promise was made, just 62 prisoners had been returned to their home country to serve the rest of their sentences. Now the latest figures show that ministers are also failing to deport foreigners after they have served their sentences here. Labour's justice spokesman Sadiq Khan, who obtained the figures, said: "David Cameron's promises to send back thousands of foreign prisoners and to take a personal interest in this matter ring hollow. Not only has he failed to send more prisoners home, but the number in our prisons has actually risen. Over half a billion pounds a year is now spent on keeping foreign prisoners in our prisons, and because of Cameron's failings, money that would be better spent elsewhere in our justice system to keep our communities safe is being wasted. Some 2,220 foreign offenders are in jail for violence against the person while 1,287 are sexual offenders. There are 947 robbers, 517 burglars, 738 thieves and 434 fraudsters. Some 2,110 of the foreign prisoners are there for drug offences while 105 have committed motoring offences.It costs around £45,000 a year to keep an offender in prison. The figures, released by justice minister Jeremy Wright, show that the second most common nationality of overseas prisoners is now Polish - overtaking the Irish. Jamaicans top the nationality table, with 900 last year, followed by Poland on 750, and Ireland, 737. Over the past five years, there has been a trebling of the number of Romanian offenders in our jails, even before the EU restrictions on immigration from that country and Bulgaria are lifted at the end of the year. Romanians are now the fifth most common nationality in our prisons. David Green, from the think tank Civitas, said: "If you have more immigration, it is not surprising that a proportion of them will be offenders."