Police pursued a complex paper trail after Harry Redknapp told a corruption inquiry of his Monaco dealings with Milan Mandaric.
Here is a timeline of the multimillion-pound investigation:
June 25, 2001 - Redknapp joins Portsmouth as director of football. His contract includes commission on net transfer profits of 10%.
July 3, 2001 - Redknapp signs Peter Crouch from Queens Park Rangers.
March 18 - Redknapp agrees new deal to become manager at Portsmouth following the departure of Graham Rix, with reduced commission on transfer profits of 5%.
March 27 - Crouch, signed by Redknapp nine months earlier for £1.25million, joins Aston Villa for £4.5million, a profit of £3.25million, worth £115,473 at 5% or £230,946 at 10%.
April 22 - Redknapp is paid a bonus through Portsmouth's payroll of £115,473. Tax and National Insurance are deducted at source via the PAYE system.
April 26 - Redknapp flies to Monaco to open Rosie 47 bank account.
May 27 - Redknapp and Milan Mandaric sign backdated contract to include the 5% clause dated to March 19.
May 28 - Mandaric pays 145,000 US dollars into Rosie 47 account. Sum is credited on June 4.
January 4 - Redknapp faxed David Cusdin, Monaco HSBC bank manager, requesting 100,000 US dollar transfer to Mandaric's US account with First Star.
February - Details of a £300,000 bonus received by Redknapp from West Ham United upon the sale of Rio Ferdinand appear in newspaper reports.
January 15 - HMRC tax authorities write to Redknapp and his accountants to announce a civil investigation into Redknapp's payment for Ferdinand transfer.
April 29 - Rosie 47 account receives a payment of 150,000 dollars from the Milan Mandaric Revocable Trust.
October 19 - Tax authorities close investigation into Redknapp's tax affairs by signing certificate of full disclosure.
November 6 - Redknapp reveals details of the Rosie 47 account as he is questioned by the Quest investigation into Premier League bungs.
November 20 - Accountant Nigel Layton, of Quest, writes to Redknapp requesting voluntary disclosure of all offshore and onshore accounts between 2004 and 2006.
November 24 - Mandaric signs letter to Mr Layton surrounding £100,000 investment in Monaco account.
November 27 - Portsmouth chief executive Peter Storrie faxes Redknapp's solicitors the letter Mandaric sent to Quest.
November 27 - Mandaric and Redknapp arrested by City of London Police.
January 11 - Redknapp gives written instruction for the Rosie 47 account closure and for funds to be transferred to his London HSBC account.
January 31 - Malcolm Webber, Redknapp's accountant, writes to HMRC declaring untaxed interest on Monaco account. He attaches £4,415 cheque from Redknapp.
February 11 - Rosie 47 account closed. 207,000 US dollars credited to Redknapp's UK HSBC account.
October 15 - Redknapp's accountants write to HMRC "indicating possibility" that tax was not accounted for in respect of two payments - 145,000 US dollars in June 2002 and 150,000 US dollars in May 2004.
February 26 - News of the World reporter Rob Beasley calls Mandaric on phone after receiving a tip-off about the police investigation.
February 28 - Mr Beasley calls Redknapp on the eve of his new club Tottenham Hotspur taking on Manchester United.
May 6 - City of London Police obtain production order to take tape recordings and notes made by Mr Beasley.
June - Redknapp and Mandaric both interviewed by police.
July 13 - Mandaric's solicitor emails Redknapp's lawyer to ask for repayment of 145,000 US dollars.
October 4 - News of the World publishes revelations about the investigation.
October 5 - Police interview Redknapp again.
January - Redknapp and Mandaric are charged with tax evasion.
January 23 - The pair go on trial at London's Southwark Crown Court accused of two counts of cheating the public revenue.
February 8 - Redknapp and Mandaric are cleared by a jury.