The Asil Nadir case remains one of the most controversial chapters in the history of the SFO.

BBC: How Asil Nadir stole Polly Peck's millions

The Conservative Party has rejected calls to repay money from Asil Nadir's Polly Peck group in the 1990s.

BBC: Tories refuse to repay Polly Peck donations

Mr Mates stepped down from John Major's government in 1993 over his links with fugitive tycoon Asil Nadir.

BBC: Michael Mates

Asil Kurul, who works in the Turkey office of Endeavor Global, an organization aimed at promoting entrepreneurship, says things are changing.

WSJ: Time for Turkey to Realize Potential

But things fell spectacularly apart for Asil Nadir in September 1990 when the Serious Fraud Office (SFO) raided his management offices in Mayfair.

BBC: Asil Nadir: City conman with 'dangerous charisma'

Serious Fraud Office investigators have been forced to don masks and gloves when handling contaminated paperwork relating to the case of Asil Nadir.

BBC: Asil Nadir

Asil Nadir blames the raid - not his actions - for how Polly Peck's share price began to dive, leading ultimately to the conglomerate's collapse.

BBC: Asil Nadir: City conman with 'dangerous charisma'

The papers showed the name and address of Ersin Tatar and details from Barclays bank statements and references to financial transfers to Impexbank in 1990, a Turkish bank purchased in 1988 by Asil Nadir.

BBC: Asil Nadir employee 'tore up transfer evidence'

In 2011 Asil Nadir's defence team tried to stop the trial by arguing that the original case controller prejudiced the case by passing around the tycoon's private legal correspondence and failing to tell the attorney general about this.

BBC: How Asil Nadir stole Polly Peck's millions

Det Insp Hawkins also told the court about a search he conducted at the offices of South Audley Management on 19 September 1990 and documents that were discovered in the office of Elizabeth Forsyth, a director who the prosecution allege helped Asil Nadir carry out dishonest transactions.

BBC: Asil Nadir employee 'tore up transfer evidence'