Inquiry proceedings
22Privileged information etc
1
A person may not under section 21 be required to give, produce or provide any evidence or document if—
a
he could not be required to do so if the proceedings of the inquiry were civil proceedings in a court in the relevant part of the United Kingdom, or
2
The rules of law under which evidence or documents are permitted or required to be withheld on grounds of public interest immunity apply in relation to an inquiry as they apply in relation to civil proceedings in a court in the relevant part of the United Kingdom.