The proceedings must be fair and be seen to be fair, and that means ensuing that the accused can vigorously defend themselves.
have a chilling effect on the willingness of competent lawyers to vigorously defend the accused in these cases.
A fair trial requires defense counsel who can defend their clients zealously, without fear of reprisal.
This could have a chilling effect on the willingness of competent lawyers to vigorously defend the accused and that could have a fatal effect on the fairness and effectiveness of the trial.