A computer forensics expert dismissed suggestions from accused fraudsters that e-mails and invoices apparently created on their home computer were “fiddled” with by police investigators.Paul Weall, a British expert, examined data from computers during the police investigation of Kyril Burrows and his wife Delcina Bean-Burrows.The couple are on trial at Supreme Court facing 35 charges including cheating Government, obtaining Government money by deception and false accounting. Prosecutors say they stole more than $553,000 of taxpayers’ money. They are defending themselves against the allegations, which they deny.Mr Burrows, 48, a former buildings manager at Works and Engineering, is accused of dishonestly submitting invoices so Government paid to rebuild the house he shared in St George’s with his 49-year-old wife. He’s further accused of directing Government funds to his wife’s companies Ren Tech and Theravisions for work that was not done. He is also alleged to have spent Government cash on three televisions for his private use.According to Mr Weall, the names of 12 files on an external hard drive seized from the Burrows residence on March 1 2012 were entitled “deception e-mail evidence”. Among them was a document Mr Burrows presented to a Government prosecution witness, Permanent Secretary Robert Horton, when he cross-examined him last month.According to Mr Burrows, the email suggested he had been given permission to relocate three televisions from the Prospect depot to his home. Mr Horton, who was Permanent Secretary at Works and Engineering at the time of the alleged e-mail exchange, said he could not recall it.Last week, Mr Weall told the jury this apparent e-mail sent to Mr Burrows’s Gmail account appeared to have been created on a computer seized from the couple. He said it looked to have been created in the Microsoft Word programme, by cutting and pasting e-mails from the Government server. The email Mr Burrows handed to Mr Horton could not be found on the Government e-mail server itself.The expert also showed the jury an invoice for Simmons Maintenance, which he said appeared to have been created on the computer using a template downloaded from the Microsoft website. The author was listed as Mr Burrows. Mr Weall said the invoice was exactly the same as one submitted to the Accountant General and signed off for payment by Mr Burrows.Yesterday, the accused couple cross-examined Mr Weall on his evidence. Both questioned him over whether changes could have been made to the external hard drive between it being seized by the police on March 1 and him beginning his investigation the following day.Mr Weall told Mrs Bean-Burrows: “I received the external hard drive in a sealed plastic evidence bag. I opened the bag on March 2 and I had no reason at that time, and still don’t believe, that any police officer who had it in their possession before it was given to me had connected it up to a computer, viewed the evidence or done whatever to it.”He added: “I have no reason to think that any police officer had fiddled with the contents before it came into my possession.”He said the same of the couple’s computers.When Mrs Bean-Burrows inquired if Mr Weall searched her husband’s Gmail account, he replied that he only looked at e-mails on the Government server as he did not have the password to log onto Mr Burrow’s Gmail account.Prosecutor Susan Mulligan inquired how hard it would be to change the contents of an e-mail on the Government server as opposed to editing a Gmail using the Word document.Mr Weall said he does not have the skills to edit an e-mail on the Government server. However, he said he set up his own Gmail account to experiment with editing e-mails in Microsoft Word and found he could change the contents, times and dates.He said when he put this next to a real Gmail “I found it impossible to see which one was the original and which was the changed one, so it’s incredibly easy to take a Gmail and using Microsoft Word, change it to something different.”The case continues.