The Home Office has released figures for 2013 that suggest that of all the arrests made for immigration purposes, around one third led directly to the deportation of the arrested person.
The Home Office statistics show that of the 4,535 arrests made in 2013 for immigration offences, 1,585 led directly to the deportation of the arrested person. The statistics reveal that only 15 cases led to a criminal prosecution.
The figures have been seized upon by the Labour Party as a sign that the Government has not got a grip on immigration, as they believe the arrests should lead to a greater proportion of deportations and criminal prosecutions.
David Hanson is the shadow immigration minister.
"[This is] a shocking record and one that the Government should be ashamed of," he said.
In response, the Government said that the immigration system is being developed from the 'shambolic' system left by the previous Labour Government.
"We are building a system that is fair to British citizens and legitimate migrants and tough on those who abuse the system and flout the law," said a spokesman for the Home Office.
"We take all reports of illegal immigrants in the UK seriously, but not all the information we receive is accurate. When tip-offs do lead to arrests, there are many legal barriers that can prevent speedy deportation," they added.
The Government is attempting to streamline the system for deporting people from abroad who commit crimes, with the introduction of an immigration bill currently going through Parliament.