Labour peer and human rights lawyer Baroness Chakrabarti is on the panel this week.
There will also be two MPs – the SNP’s Ian Blackford and the Conservatives’ ex-immigration minister Robert Jenrick.
Jenrick resigned as immigration minister in December last year in protest against Prime Minister Rishi Sunak’s plan to send asylum seekers to Rwanda.
He said at the time that the policy did not “go far enough”.
Baroness Chakrabarti is a member of the House of Lords and a member of the Labour Party.
She previously served as shadow attorney general from 2016 to 2020 and as director of advocacy group Liberty.
Blackford has represented Ross, Skye and Lochaber in the House of Commons for the SNP since 2015, but announced last year that he would not stand at the next election.
He is a former banker and has previously served as SNP Westminster leader, but stood down from the role in December 2022.