A close male family member of mine joined a company one month after his female colleague. They work on the same team and their roles overlap. The female colleague, FC, took a dislike to my family member, FM, straight away and was obstructive and difficult when my FM tried to carry out his tasks that overlapped with hers.
The FC passed her probation period and my FM still had a month left to go on his. During this period the FC made a malicious allegation of sexual harassment against my FM. She alleged that the harassment took place on a certain day at a certain time when she and my FM would ordinarily have been alone in the office together. But unknown to the FC, my FM was actually in an unscheduled meeting with the CEO of the company at the time she alleged he harassed her. So HR completely cleared him of any wrongdoing. By the time HR had cleared him, his probation period was up and he was one week past the official end of his probation, but there had been no formal end of probation review or acknowledgement that he had passed.
The FC wasn't disciplined or anything. They were both moved from their adjacent desks and now sit apart in different parts of the office.
The problem is, their roles haven't changed and they are still required to work with each other. My FM recently had his end of probation review (by now a month late) and was told his probation had been extended for another month because he wasn't performing. But his performance has been directly impacted by having to work in the same team as the FC, whom he is now very wary of and would rather have nothing to do with. He has been very stressed by the whole episode and hasn't been sleeping, which has obviously affected his performance too.
This all feels very unfair. This FC has been able to throw a bomb into his career progression while getting off scot free herself.
Where does he stand on the probation issue? He had technically passed it and then they retroactively extended it by a month citing poor performance, but of course his performance is going to be affected because he's being made to work with someone who makes malicious allegations against him.
I've told him to contact ACAS, but any advice on where else he should go from here would be welcome.