Rónán Mullen (Independent) | Oireachtas source

My question was whether there was any evidence base, or any example where doctors are called on to make a certification in the absence an evidence base. Dr. Holohan is saying that it was established that there is unanimity that abortion is not a treatment for suicidal ideation. He is questioning that by saying there are conflicting views among psychiatrists, but it is a conflicting view in the absence of evidence. Is there any other situation where doctors are called on to make a certification in the absence of an existing evidence base, because this is all being presented to us as medicine?