Two years ago, my friend was dismissed from the job she loved after 20 years. The reason was gross misconduct. Without going into specific details, there was a police inquiry from which she was later completely exonerated. However, her employer dismissed her anyway - I believe, simply to cover their own backs and wash their hands of the situation. The problem now is that her 20 years of dedicated experience, with excellent feedback, is summed up in a reference simply saying she was dismissed. The union advised her not to challenge the dismissal at the time - I don't know why. This is obviously damaging her chances of finding another job. Is there any way this reference can be challenged or amended to at least provide some context two years on? I would be grateful for any advice.