Lucy Letby was fast-tracked to enhanced prisoner status that allows her to have extra cash to spend on treats like sweets and chocolate and more time outside her cell, the Mail can reveal.

Letby has been given a cleaning job and her privileged status allows her a visit every week – twice as many as standard prisoners, a source said.

All prisoners, regardless of their crimes, are automatically given standard status when they arrive following their sentencing.

But the former neonatal nurse convicted of killing seven babies and attempting to murder seven more was moved straight from her induction at HMP Bronzefield to the prison’s unit four, the source said.

The unit is solely for enhanced prisoners, who make up roughly 25 per cent of the jail’s population.