Former Labour minister Denis MacShane is facing jail after he admitted making nearly £13,000 worth of false expenses claims.
The former MP for Rotherham filed 19 fake receipts for "research and translation" services.
He used the money to fund a series of trips to Europe, including one to judge a literary competition in Paris.
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MacShane was warned by the judge that all sentencing options "remain open" when he returns to court next month.
He faces a maximum jail sentence of seven years.