Zimbabwean mental health nurse Richman Matinyadze was jailed for seven months in December 2010 after admitting charges of possessing false documentation, following an NHS Protect investigation.
He was granted asylum, but not the right to obtain work, in 2007.
Mr Matinyadze found work as a care assistant on £200 a week and later became a nurse at Dudley and Walsall Mental Health Partnership Trust.
His lawyer described him in court as feeling “a moral instinct to work”.
Abiodun Salami worked for seven years as a nurse for Camden and Islington Foundation Trust, earning £16,000 a year.
But in November 2010 NHS Protect announced in a press release: “London mental health nurse jailed for £130k NHS fraud”.
The Nigerian mother of two falsely declared that she did not need a student visa to obtain an NHS bursary in 2001, but she was later granted leave to remain on the grounds that she was married to a settled person.