Baroness Falkner
"If you decide that you're providing a single-sex facility, then you cannot allow any biological males into that facility."
Baroness Falkner told BBC Scotland News there were "an awful lot of questions about the veracity" of the tribunal's ruling and said it was "more than likely" that it would be appealed.
"It is a highly unusual and surprising judgement if you base it on what happened in court during those months, and the written submissions," she said.
The peer added that she would welcome the clarification that a possible appeal would bring