Canadian Criminal Procedure and Practice/Trials/Role of Trial Judge

Powers and Responsibilities of the Judge
An accused person is entitled to a Constitutional right to an impartial trier-of-fact.

Once a judge begins hearing evidence and makes a ruling on it, the judge becomes seized with the matter and no other judge can take over.

Process
A Superior Court Justice has the inherent jurisdiction to eliminate any procedural unfairness that arises during a trial.

The "procedural directions contained in the Code are of necessity exhaustive". The powers of a provincial court judge are "entirely statutory." However, "the authority to control the court's process and oversee the conduct of counsel is necessarily implied in the grant of power to function as a court of law. This Court has affirmed that courts can apply a ‘doctrine of jurisdiction by necessary implication’ when determining the powers of a statutory tribunal.”

The inherent powers of a superior court judge to control the court process is said to be equally available to provincial court judges either expressly by statute or by necessary implication.

Consequently, a provincial court judge has implied jurisdiction to "vary one of its own orders in order to correct clerical mistakes or errors arising from an accidental slip or omission or in order to properly reflect the intention of the court"

Generally, a "court has a limited power to reconsider and vary its judgment disposing of the case as long as the court is not functus.”

Limiting evidence
The judge is required to listen to evidence that "advances the work of the court". He or she cannot be required to listen to irrelevant or pointless evidence. The judge may even disallow the submission of non-relevant evidence.

The judge has an obligation to track the admission of evidence to ensure that the record is restricted to what is admissible, and also that it is only used for the purpose for which it was admitted.

The judge has the jurisdiction to edit the evidence, including written statements and oral testimony, as it is given. The judge may edit out portions of the evidence that is prejudicial or otherwise irrelevant or immaterial only so long as it does not distort the probative evidence.

Fact Finding
Evidence before a judge are not facts. The judge has the power to hear evidence from which factual conclusions may be made. The Judge may make inferences. These inferences must be logical conclusions drawn from the evidence before the judge at trial. They cannot be conjecture or speculation about potential evidence that has not be submitted before the court.

There are generally well known inferences, that a judge will make regularly such as the inference "that one intends the natural consequences of one’s actions [in] any ... human activity, especially in light of the lack of evidence to rebut the inference."

Sitting Position of Accused
Sitting arrangment of the accused in the court is in the sole discretion of the trial judge.

Custom dictates that the accused is to be placed in the dock which is not said to violate the accused’s Charter rights.

The jury should be able to see the accused during the trial. This interest may prevent the accused from requesting a seat at counsel table to give instructions.

Judge Following a Case
Once a judge hears evidence or facts on a case they are seized with the case and must follow the matter to its conclusion.

Where a judge falls ill, they remain seized with the matter unless there is unreasonable delay that results.

Doctrine of Functus Officio
A judge has jurisdiction over an outstanding charge up to the point where the charge has been resolved by way of a stay, withdraw, dismissal, acquittal, or sentencing. The doctrine of functus officio refers to the principle that a court no longer has jurisdiction to change any decisions once a charge has reached its ultimate conclusion.

This common law rule states that the final judgement of a court cannot be reopened. The power to review a decision is transferred by the Judicature Act to the appellate division.

This rule only applies to judgements that have been drawn up, issued and entered.

It is said that a court is functus if and only if "the duties and functions of the [court’s] original commission have been fully accomplished"

There are exceptions to this rule. The court may still interfere with a prior decision where:
 * 1) where there had been a slip in drawing it up, and,
 * 2) where there was an error in expressing the manifest intention of the court

A trial judge sitting without a jury is functus officio only after he has imposed his sentence.

An intermittent jail sentence cannot be varied by the sentencing court to a non-intermittent. There is some authority suggesting that the court may vary the entry and exit times of the intermittent sentence based on the power of the court to control its own process.

Communications with Counsel Out of Court
Ex parte communications (i.e. communications in absence of one of the parties) concerning an ongoing proceedings should be avoided. It is a rule that relates to the "public perception of fairness within the administration of justice". It also preserves "confidence of the public in the impartiality of the judiciary and thereby in the administration of justice".

Ex parte communications between judge and counsel concerning a case will "almost invariably raise a reasonable apprehension of bias".

Intervention During Trial
There is a presumption that a trial judge has intervened in a trial properly. The judge may often make comments, give directions or ask questions. The key issue is whether the intervention affected trial fairness. This is from the perspective of a reasonable observer.

A judge may disrupt questioning in order to clear evidentiary ambiguities, pursue subjects left vague by the witness, and ask questions counsel should have asked.

"Interlocutory remarks" of the judge during argument are not "judicial pronouncements"

A judge is permitted to give the jury mid-trial instructions to disregard any erroneous comments made by counsel. If it is given promptly and with explanation of why it should be disregarded, this can effectively correct any concern that a jury might misuse the information.

There is a presumption that an accused not be restrained while in court. It is upon the Crown to establish grounds to order the restaint of the accused.

Unnecessary and repeated interruptions that disrupt the flow and effectiveness of cross-examination may exceed permissible limits.

Exclusion of parties
The trial judge can order the exclusion of the accused where his conduct makes the proceedings impractical.

The accused can likewise voluntarily be absent from the trial with the court's consent. However, depending on how the proceedings go in the absence of the accused, there may be a ground of appeal.

Misc powers
The judge does not have the power to order that counsel not communicate with a witness who is not in the middle of testimony. The rules of contempt of court and Professional Conduct are the only limitations on counsel's right to speak with witnesses and clients in court.