This is a friend. She swears it was accidental. She got muddled when completing her claim and has over claimed by c.200 miles. Basically double what she should have, so should have been an obvious mistake (ie to her when checking/signing)
She's been told there will be an investigation under the discipline and dismissal procedure, which states that over claiming expenses is gross misconduct.
So, her question is, would a company usually follow that to the bitter end, for a relatively small error rather than deliberate systematic fraud?
What support should she expect from her union?