Diarmuid Wilson (Fianna Fail) | Oireachtas source

I will be brief because as the Cathaoirleach alluded to, this area has been well covered. Senator McDowell lightly touched upon the definition of a layperson and I seek clarification in this regard. Would somebody who is an academic and has a qualification at bachelor, masters or PhD level in law be regarded as a layperson? Would somebody who is an arbitrator or a mediator with a law degree and practising in that field be regarded as a layperson?