The Ontario Personal Injury Trial Process: From Jury Selection to Judgment

Why Understanding the Trial Process Matters

Fewer than five percent of Ontario personal injury cases reach a verdict. Yet the structure and risk of a trial shapes every settlement discussion that precedes it. Lawyers, insurers, and claimants evaluate settlement positions by reference to what a trial would likely produce. Understanding how trials work equips you to make better decisions at every earlier stage of the litigation process.

Jury vs. Judge-Alone Trials

In Ontario, either party may elect a jury trial in a personal injury case. Jury trials are generally preferred by plaintiffs’ counsel in sympathetic cases with compelling facts — juries can be more generous than judges with general damages. Defence counsel may prefer judge-alone trials in complex threshold or damages cases where nuanced legal analysis is likely to favour their position. The election has significant strategic implications.

Jury Selection

Ontario uses a jury of six for civil cases. Jury selection allows counsel to challenge prospective jurors for cause — where there is specific reason to believe a juror cannot decide impartially — and to exercise a limited number of peremptory challenges without explanation. Jury selection in personal injury cases focuses on identifying potential jurors whose backgrounds or expressed views suggest they would not impartially assess the parties’ positions.

Jury instructions on the threshold: In Ontario auto accident trials, the judge instructs the jury on the verbal threshold before deliberation on general damages. The jury must find that the plaintiff’s injuries satisfy the threshold before awarding general damages. Losing the threshold argument means no general damages even if the jury otherwise believes the plaintiff’s account entirely.

Evidence, Cross-Examination, and Expert Witnesses

The plaintiff presents their case first — calling treating physicians, expert witnesses, the plaintiff, and other relevant witnesses. Cross-examination by defence counsel follows each witness. Medical experts — neuropsychologists, physiatrists, occupational therapists, life care planners, actuaries — are the most critical witnesses in serious injury cases. The ability to present expert evidence clearly and withstand cross-examination determines case outcomes more than any other single factor.

Closing Addresses, Jury Charge, and Verdict

After all evidence is presented, counsel deliver closing addresses. The judge then charges the jury — instructing on applicable legal standards, burden of proof, and how to approach each element of the damages calculation. The jury deliberates in private. Five of six jurors must agree on the final verdict — a unanimous verdict is not required in Ontario civil cases.