The mayor of London, Ont., has been found guilty on charges of fraud, forgery and breach of trust that date back to his time as a Liberal MP.
The judge in the trial of Joe Fontana said the former federal cabinet minister abused the public trust when he altered a contract that he submitted for expenses in 2005.
Fontana testified the $1,700 the government paid out was not for his son's wedding.
But Judge Bruce Thomas said the former MP and the president of the club where the wedding was held concocted a story for the court intended to create reasonable doubt.
Thomas also said he could not understand "why a man of such accomplishments might choose to take these actions for the sum of $1,700," but that did not detract from the strength of the Crown's case.
Fontana is to be sentenced July 15.