A presiding officer at a disciplinary hearing in the public service has a discretion to allow legal representation, notwithstanding clause 7.3(e) of the Disciplinary Code which generally prohibits it, where on a conspectus of all the circumstances it would be unfair not to allow such representation. Clause 2.8 of the Code, which permits departures in 'appropriate circumstances', should be interpreted to include circumstances where fairness requires legal representation. The common law principle that disciplinary proceedings must be fair applies, and if fairness requires legal representation, a disciplinary body must be taken to have the power to allow it in the exercise of its discretion unless it has plainly and unambiguously been deprived of such discretion. The presiding officer must exercise this discretion by considering relevant factors including the nature of the charges, the degree of factual or legal complexity, the potential seriousness of consequences, and the nature of prejudice to the employer.