17. Section 139ZJ of the Principal Act is amended—

(a) by the substitution of “inquiry subject” for “provider” in each place where it occurs, and

(b) by the insertion of the following subsection after subsection (3):

“(4) In the case of an investigation pursuant to a direction under section 139ZI(1) which is a joint investigation to which Article 60 applies, the authorised officer shall also give the inquiry subject notice in writing of—

(a) the Member State Digital Services Coordinators or other Member State competent authorities participating in the investigation, and

(b) the deadline for the conclusion of the investigation.”.