What happens if a public authority does not comply with steps specified in a decision notice issued by the Information Commissioner under the Freedom of Information Act 2000 (FOIA)? Assuming that no appeal is brought by the authority, then section 54 of FOIA provides that, in such circumstances, the Commissioner may (not “must” – this is a power, not a duty) certify in writing to the High Court (or, in Scotland, the Court of Session) that the authority has failed to comply with that notice, and the court may (after inquiring into the matter) deal with the authority as if it had committed a contempt of court.
This much is, relatively, straightforward, but what happens if the Commissioner’s decision notice doesn’t specify steps the public authority should take – for instance (and most normally) where the Commissioner doesn’t uphold a complaint by the requester, and the latter appeals to the First-tier Tribunal (FTT), with the FTT subsequently upholding the appeal, substituting its own decision for that of the Commissioner, and itself specifying steps to be taken by the public authority? In those circumstances, who is responsible for (or at least has the power of) enforcement of those steps? Is it the Commissioner, or the FTT itself?
This is not a hypothetical question – the FTT will frequently disagree with the Commissioner – sometimes, of course upholding an appeal by the public authority, but at other times upholding a requester’s appeal, and ordering the public authority to take steps which were not originally specified by the Commissioner.
The answer, says the Upper Tribunal, in Information Commissioner v Moss and the Royal Borough of Kingston upon Thames  UKUT 174 (AAC), is that it is for the FTT to enforce, on the (slightly circular sounding) grounds that it has the power to do so, and the Commissioner doesn’t.
The FTT’s power to enforce emanates from paragraph 61(4) of FOIA, which provides that where a person fails to do something, in relation to proceedings before the FTT on an appeal, and if those proceedings were (instead) proceedings before a court which had a power to commit for contempt, and the failure would constitute contempt (such as failing to comply with steps in a substituted decision) the FTT may certify the offence to the Upper Tribunal (in Moss, which related to matters before section 61 was amended by the Data Protection Act 2018, the power was to certify to the High Court, but nothing turns on this).
By contrast, for the Commissioner to control the enforcement of the FTT’s decision would be to offend the “fundamental constitutional principle” as enunciated by Lord Neuberger (in R (Evans) v Attorney General  AC 1787 – also a FOIA case, of course) that “a decision of a court is binding as between the parties, and cannot be ignored or set aside by anyone” (including, one might add, by the Commissioner, upon exercise of her power (not, remember, her duty) to enforce her own decisions by certifying to the High Court).
In Moss Upper Tribunal Judge Jacobs did not have to decide who is responsible for enforcing a decision notice if the FTT dismisses an appeal against it (i.e. where the Commissioner’s original decision, and any specified and required steps are unchanged). He merely noted that “there is authority that, even if an appeal against a decision is dismissed, it thereafter derives its authority from the tribunal’s decision” (which to me, looks like strong obiter indication that he would have, if required to do so, found that the FTT, and not the Commissioner, would also have the enforcement power in those circumstances).
I can recall (purely anecdotally) occasions where successful appellants to the FTT have bemoaned subsequent failure by public authorities promptly to take the steps specified by the FTT in its decision. The position now seems clear – if those steps need enforcement to make them happen, it is to the FTT that the aggrieved requester should turn.
The views in this post (and indeed most posts on this blog) are my personal ones, and do not represent the views of any organisation I am involved with.