Between 1988 and 1992, four employees of the Bank of England's incinerator plant at Debden in Loughton, Essex, conspired to steal around £600,000 in banknotes that were due to be destroyed, in a series of thefts.

[4] Gibson initially worked in collaboration with just two other employees, Kenneth Longman and Michael Nairne, before the trio were approached and joined by a fourth individual, Kevin Winwright, who acted as their "look-out" and distracted the guards.

[6] The criminal gang was brought to the attention of the police after Gibson's husband, Peter, attempted to make a deposit of £100,000 at the Ilford branch of the Reliance Mutual Insurance Society entirely in £20 and £50 notes.

[4] After a two-week trial, Rudd delivered his judgment on 26 April 1994, ordering the three families to repay more than half a million pounds to the bank.

[8] A similar crime was committed in 2000, when two bank clerks stole 110 sacks of notes valued at £23,000 that were due to be incinerated – the two participants were sent to prison for six and nine months.