The basic position, of course, is that someone who's been remanded in custody is entitled to be paid during the time they spend on remand. However, there are precedents in previous Employment Tribunal decisions whereby that general principle ahs been disapplied where an employee is at fault, through their own conduct, for having been remanded. This was the case with Mendy, with the Court stating that he was denied bail specifically as a function of his previously having breached the conditions of his police bail during the investigation.
I'm sure this is what the club will be arguing, and in my view absolutely rightly so, with respect to the time he spent on remand. As the wait for the trial date wore on, he was eventually granted bail, but subject to conditions. I don't know exactly what those conditions were, but if (and please note my use of this word) they also prevented him from performing his employment duties and were imposed to similar reasons to those behind the original decision to place him on remand, then similar considerations will apply.
The decisions of previous Employment Tribunals aren't binding on subsequent Tribunals, but I personally think that Mendy has brought his own woes upon himself and hope we're as aggressive as it takes in this case to ensure he gets as little further cash from the club as we can get away with. I'd certainly consider, in the event of an unsatisfactory verdict, attempting to get the case to the Court of Appeal. It's actually a serious legal issue that IMO ought to be covered by a binding legal precedent, so I think we'd have a fair chance of being given leave to appeal, as well.