UKBA

He first helped them find a safe house and temporary jobs, then worked to get them formally recognised as victims of trafficking by the UKBA.

Immigration minister James Brokenshire said: "UKBA was a failing organisation that could not deliver an efficient immigration system for Britain. "This is why we split it up into three separate divisions to improve focus on their specific roles in delivering a controlled immigration system and bring them under the direct supervision of ministers.

The failure of the project has meant that the UK Border Force, successor to UKBA, is unable to reliably determine who is entering and leaving the UK, making it difficult to tell whether or not British jihadists fighting in Iraq and Syria have returned to Britain.

"The go home poster campaign exposes the UKBA's attitude and gives us a small idea of what refugees in this country go through when they seek asylum."

At the time, the college wrote to students expressing "frustration" at the decision and blaming "formalities and clerical issues on the side of the UKBA" for the problem.