Mandamus can issue without significant prejudice from delay: Benison v. Canada (Royal Canadian Mounted Police External Review Committee), 2026 FCA 53

FACTS:

The RCMP External Review Committee (“ERC”) is an independent tribunal that considers appeals by RCMP members from internal labour-related decisions and makes non-binding recommendations to the RCMP Commissioner. The applicants are current and former RCMP members who were subject to disciplinary measures and had outstanding appeals before the the ERC.

Due to legislative amendments in 2014, the ERC’s mandate increased, resulting in a lengthy backlog of cases. To address the backlog, the ERC developed a method to prioritize and address certain appeals. As a result of this system, the applicants’ appeals were placed at the lowest level of priority. At the time of the Federal Court hearing, their appeals had been pending for approximately 3.5 to 4.5 years.

The applicants brought an application for mandamus orders to compel the ERC to complete its review of their appeals within 30 days. The Federal Court dismissed their application, concluding that they did not meet the criteria for a mandamus order based on unreasonable delay. In particular, the Federal Court concluded that they did not suffer significant prejudice from the delay and that allowing them to “jump the queue” through a mandamus order would be unfair to other members with pending appeals who did not seek mandamus.

DECISION:

Appeal allowed in part; mandamus order granted requiring the ERC to issue its findings and recommendations within 6 months (per Heckman J.A., Locke and Mactavish J.J.A. concurring).

As the question before the Federal Court of Appeal was whether the Federal Court erred in determining that the applicants had not made out the requirements for the issuance of a mandamus order, it applied the regular appellate standard of review to the Federal Court’s decision. It determined that it could set aside the Federal Court’s decision due to errors in law and a failure to consider the appropriate factors.

In its decision, the Federal Court of Appeal reaffirmed the 8-part Apotex test for mandamus orders:¹

1. there is a public duty to act;
2. the duty is owed to the applicant;
3. there is a clear right to performance of that duty, in that the applicant has satisfied all conditions precedent giving rise to the duty and there was a prior demand for its performance, a reasonable time to comply with the demand and a subsequent refusal, either expressed or implied (e.g., by unreasonable delay);
4. certain criteria are satisfied if the duty sought to be enforced is discretionary;
5. no other adequate remedy is available to the applicant;
6. the order will be of some practical value or effect;
7. the court finds no equitable bar to the relief sought; and
8. the balance of convenience favours issuing the order.

However, the Court clarified important aspects of this test. First, the test is conjunctive. If any one of the criteria does not favour the applicant, the court must deny mandamus. Second, the burden of proof shifts between the criteria. The applicant bears the burden on the first 4 criteria, which coincide with the traditional requirements for the issuance of a writ of mandamus. But the burden shifts to the respondent for criteria 5-8, which relate to the court’s discretion to refuse to issue a prerogative remedy. Thus, an applicant does not need to proactively disprove the final 4 criteria. However, these bars to relief may be raised by the respondent or the reviewing court, or may be apparent from the record. In those cases, the applicant bears a tactical burden to disprove their existence.

Much of the Court’s discussion in the case focused on the 3rd factor and the existence of unreasonable delay. The Federal Court of Appeal clarified that an applicant does not need to establish significant prejudice from the delay as a precondition to obtaining mandamus. The requirement to show significant prejudice from Abrametz² and Blencoe³ in the abuse of process case law does not apply because of the different context. In this analysis, the Court of Appeal resolved competing jurisprudence from the Federal Court, where many judges had incorrectly imposed a “significant prejudice” threshold.

On the record in this case, the Court concluded that delays of 3.5–4.5 years were unreasonable and far exceeded what the nature and purpose of the ERC process contemplates, especially given its own 1‑year standard for 75% of post‑April 2022 files. The ERC did not provide a satisfactory justification for the delay: generalized references to the 2014 caseload surge, delayed resourcing, and a prioritization system —untethered to when these applicants’ files would be completed — cannot provide an open‑ended excuse for unlimited delay.  Insufficient resources cannot invariably justify inordinate delay; decision‑makers must devote adequate resources and justify excessive delay with evidence linked to the specific files.

Finally, the Federal Court of Appeal expressed “serious doubts” that concerns about “queue jumping” could serve as an equitable bar to mandamus. Courts can address these concerns under the balance of convenience. However, a court’s decision to decline to issue mandamus at the 8th criteria should be supported by evidence and justified by cogent reasons. As the ERC did not show that the mandamus order for the applicants would result in administrative chaos or cause disproportionate impacts on other members, the balance of convenience favoured the applicants.

Given the record and the time‑sensitivity of mandamus, the Court issued the order rather than remitting the matter to the Federal Court. It ordered the ERC to issue findings and recommendations in each of the applicants’ appeals within 6 months, subject to an application for a reasonable extension. 

COMMENTARY:

For anyone seeking or resisting a mandamus order in the federal courts, this decision is a must read. The Federal Court of Appeal has helpfully set out and explained the criteria to obtain such an order.

Importantly, following the Federal Court of Appeal’s decision, it should be easier for applicants to obtain mandamus orders, for the following reasons:

• The applicant only bears the burden on the first 4 Apotex criteria, after which the burden shifts to the respondent.
• The applicant does not need to prove that any delays have caused them “significant prejudice”.
• Agencies must justify excess delay with evidence tied to the applicant’s file, not solely with structural explanations.
• Agencies cannot rely solely on lack of resources as an excuse for unreasonable delays.
• Concerns about “queue jumping” are not an equitable bar to mandamus.
• Agencies must provide evidence and cogent justifications for why the balance of convenience does not favour mandamus, such as “administrative chaos” or “disproportionate” impacts on other parties.

However, while the Federal Court of Appeal clarified that an applicant does not bear the burden to disprove criteria 5-8 of the Apotex test, applicants would still be well served to adduce evidence and raise arguments on these criteria if they may arise. As the Court recognized, the applicant still bears a tactical burden here if the respondent or the court raises one of discretionary bars, or it is apparent on the face of the record.

1. Apotex Inc. v. Canada (Attorney General), [1994] 1 FC 742 (C.A.), aff’d [1994] 3 S.C.R. 1100 [Apotex] ↩︎
2. Law Society of Saskatchewan v. Abrametz, 2022 SCC 29 ↩︎
3. Blencoe v. British Columbia (Human Rights Commission), 2000 SCC 44 ↩︎