I started working for the local authority under a year ago, my employment record is excellent, no absence or lateness and great feedback in first 6 months, signed off. There is 5 of us in our department, 3 males 1 other female. The female is married to one of the males. I have had nothing but grief and complaints from this female work colleague in the same position as myself. I have told my manager at every monthly meeting she is difficult to get along with, my manager said "We, had a discussion whether bringing another female into the team would change the group dynamics". This female has been the only female for over 7 years. I have been very enthusiastic and work hard but she is lazy and I believe she thinks I may be showing her up. I was signed off in November after 6 months and had a tidy up of the office and data. This female reported me in December for not reporting an incident, (there was nothing to report). I have been under investigation for the past 4 months, today I received a letter telling me another allegation has been raised in the course of the investigation and it will be going to a disciplinary panel. No mention of the 2 original allegations as they have not been able to prove any wrong doing on my part. My manager keeps changing the points of the investigation. First it was failing to report, second it was person may have suffered injury, then it was not written in the log properly. No the new allegation is falsifying a critical document. What can I do, I have the union backing me but I am still worried as it seems they are determind to get me out of the company. The female colleague that has made complaints about me, her husband trained me and is an asset as he performs a lot on computer repairs for my manager for free. I believe this has turned into a witch hunt, what can I do to stop myself losing my job?. I have done no wrong.