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Case information

Consult our database for details on a Supreme Court of Canada case.


42381

Ian Seo v. Information and Privacy Commissioner of Ontario, et al.

(Ontario) (Civil) (By Leave)

Docket

Judgments on applications for leave to appeal are rendered by the Court, but are not necessarily unanimous.

List of proceedings
Date Proceeding Filed By
(if applicable)
2026-07-06 Certificate (on limitations to public access), (Letter Form), 23A, (Printed version filed on 2026-07-08) City of Toronto
2026-07-06 Notice of name, (Letter Form), (Printed version filed on 2026-07-08) City of Toronto
2026-07-02 Certificate (on limitations to public access), (Letter Form), 23A, (Printed version filed on 2026-07-07) Information and Privacy Commissioner of Ontario
2026-07-02 Notice of name, (Letter Form), (Printed version filed on 2026-07-07) Information and Privacy Commissioner of Ontario
2026-07-02 Respondent's response on the application for leave to appeal, (Book Form), Missing
Proof of Service (rcvd 07-02-26), Completed on: 2026-07-06, (Printed version filed on 2026-07-07)
Information and Privacy Commissioner of Ontario
2026-06-30 Respondent's response on the application for leave to appeal, (Letter Form), Missing
23A (Rec'd 2026-07-06)
Notice of name (Rec'd 2026-07-06), Completed on: 2026-07-06, (Printed version filed on 2026-07-06)
City of Toronto
2026-06-02 Letter advising parties of an incomplete application for leave to appeal, FILE OPENED
2026-06-01 Certificate (on limitations to public access), (Letter Form), 23A, (Printed version filed on 2026-06-05) Ian Seo
2026-06-01 Application for leave to appeal, (Book Form), Missing
Proof of Service (R.20(8)(d)) Read/Receipt (Rec'd 2026-06-04), Completed on: 2026-06-04, (Printed version filed on 2026-06-05)
Ian Seo

Parties

Please note that in the case of closed files, the “Status” column reflects the status of the parties at the time of the proceedings. For more information about the proceedings and about the dates when the file was open, please consult the docket of the case in question.

Main parties

Main parties - Appellants
Name Role Status
Seo, Ian Applicant Active

v.

Main parties - Respondents
Name Role Status
Information and Privacy Commissioner of Ontario Respondent Active
City of Toronto Respondent Active

Counsel

Party: Seo, Ian

This party is not represented by counsel.

Party: Information and Privacy Commissioner of Ontario

Counsel
Name
Linda Hsiao-Chia Chen
Contact information
Information and Privacy Commissioner/Ontario
2 Bloor Street East, Suite 1400
Toronto, Ontario
M4W 1A8
Telephone: (437) 770-8216
Email: linda.chen@ipc.on.ca

Party: City of Toronto

Counsel
Name
David Gourlay
Contact information
The City of Toronto
100 Queen Street West
13th Floor West
Toronto, Ontario
M5H 2N2
Telephone: (416) 338-6970
FAX: (416) 397-5624
Email: david.gourlay@toronto.ca

Summary

Keywords

None.

Summary

Case summaries are prepared by the Office of the Registrar of the Supreme Court of Canada (Law Branch). Please note that summaries are not provided to the Judges of the Court. They are placed on the Court file and website for information purposes only.

None.

Lower court rulings

November 20, 2025
Divisional Court of Ontario

DC-25-00000672-00JR

See File

April 1, 2026
Court of Appeal for Ontario

2026 ONCA 246

See File

Filed documents

The memorandums of argument on an application for leave to appeal will be posted here 30 days after leave to appeal has been granted unless they contain personal information, information that is subject to a publication ban, or any other information that is not part of the public record. You may also obtain copies of the memorandum by filling out the Request for Court records form or by contacting the Court’s Records Centre either by email at records-dossiers@scc-csc.ca or by telephone at 613-996-8666 or at 1-844-365-9662.

If you have questions about a memorandum of argument or want to use a memorandum of argument, please contact the author of the memorandum of argument directly. Their name appears at the end of the memorandum of argument. The contact information for counsel is found in the “Counsel” tab of this page.

Downloadable PDFs

Not available

The factums of the appellant, the respondent and the intervener will be posted here at least 2 weeks before the hearing unless they contain personal information, information that is subject to a publication ban, or any other information that is not part of the public record. You may also obtain copies of factums by filling out the Request for Court records form or by contacting the Court’s Records Centre either by email at records-dossiers@scc-csc.ca or by telephone at 613-996-8666 or at 1-844-365-9662.

If you have questions about a factum or want permission to use a factum, please contact the author of the factum directly. Their contact information appears on the first page of each factum.

Downloadable PDFs

Not available

The condensed books of the appellant, the respondent and the intervener will be posted here upon receipt of the electronic version, 2 days prior to the scheduled appeal hearing. You may also obtain copies of condensed books by filling out the Request for Court records form or by contacting the Court’s Records Centre either by email at records-dossiers@scc-csc.ca or by telephone at 613-996-8666 or at 1-844-365-9662.

If you have questions about a condensed book or want permission to use a condensed book, please contact the author of the condensed book directly. Their contact information appears on the first page of each condensed book.

Downloadable PDFs

Not available

Webcasts

Not available.

Date modified: 2026-07-10