Complaints and Investigations

Expert Opinions in Standard-of-Care Investigations

When a complaint is about the quality of care or work, regulators often ask another professional to give an opinion. That opinion can drive the outcome.

  • Topic Complaints and Investigations
  • Sources checked November 10, 2026
Draft for legal review. This page has not yet been reviewed by Ryan J. Manilla.

Key Takeaways

  • Expert or peer opinions are common in standard-of-care complaints.
  • You should usually see and be able to respond to the opinion before a decision.
  • Check the expert’s field, assumptions and the records they reviewed.
  • Your response can include your own supporting opinion.

Why Regulators Use Experts

Committees often include members of the profession, but complex clinical or technical questions may need an independent opinion. CCO, for example, lists “What is a Peer/Expert Opinion?” among the questions it answers for members facing complaints.

Testing an Opinion

  • Is the expert in the same field and practice setting?
  • Did they review the full record, including audit trails and later notes?
  • Did they apply the standard in effect at the time, not today’s?
  • Are factual assumptions accurate?

Responding

Respond point by point, referencing the records and any standards or guidelines that applied at the time. In significant matters, consider obtaining your own expert opinion.

Frequently Asked Questions

Will I see the expert’s report?

Practices vary, but it is common for the professional to receive the investigation results and an opportunity to respond. Ask the regulator.

Does the panel have to follow the expert?

No. The committee weighs all of the information, including your response.

Sources

Statutory references are to the provisions listed below, as consolidated on e-Laws when this page was prepared.

  1. CCO, “Responding to a Complaint” — Checked November 10, 2026.
  2. Health Professions Procedural Code (RHPA, Sched. 2), s. 26 — Checked November 10, 2026.

Keep Learning About Your Proceeding

Read how Ontario regulatory proceedings typically unfold, or compare how other regulators handle complaints, hearings and appeals.