If he was in solitary confinement for his "own protection", according to the media and prison visitors. So how could it cause harassment? I don't think he have a jury trial, it's a pattern with Tommy, he never has a jury.
inews.co.uk/news/tommy-robinson-charged-..._read_by_subscribers
All in the BBC article.
www.bbc.co.uk/news/articles/c5y9e7nxdnlo#:~:text=%22On%20the%20contrary%2C%20all%20the,with%20the%20followers%20of%20Islam.
"On the contrary, all the evidence shows [the decision] was taken for his own protection and in the interests of preserving the safety of other prisoners and staff,"