Webber, who lives in Sussex, denied 24 counts including fraud, obtaining a money transfer by deception and obtaining property by deception, but was yesterday convicted on all but one count - making a false representation.
Remanding Webber into custody, Judge Anthony Niblett said she would face a "substantial custodial sentence" as he described her as a "very dishonest woman".
The judge told her: "You have been convicted by the unaminous verdicts of the jury on clear evidence of serious offences of dishonesty involving deceiving the public purse and the taxpayer of around £350,000 over a period of some 10 years."
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