presiding officer

The presiding officer – who decides which legislation is within the competence of the Scottish Parliament – has previously said she is confident the bill is within the powers of Holyrood.

The presiding officer must determine that a court reporter is not “reasonably available” and that delaying the hearing would not be in the interest of justice.

"It's the current first minister who determines that, in co-ordination with the presiding officer," she said.

The Welsh government can request a recall of the Senedd from the presiding officer if it believes one is required.

In addition to serving as presiding officer, he would have the power to break a tie vote in the Senate.