Corbett Applications -- The Admissibility of the Accused’s Criminal Record
Pursuant to s. 12 of the Canada Evidence Act, a witness may be questioned as to whether he
or she has been convicted of a criminal offence.
CANADA EVIDENCE ACT
Examination as to previous convictions
12 (1) A witness may be questioned as to
whether the witness has been convicted of any offence, excluding any offence
designated as a contravention under the Contraventions Act, but including such an offence where the conviction was entered
after a trial on an indictment.
Typically, the relevance of such evidence is in
respect of the witness’s credibility; the evidence cannot be used as bad
character evidence or for propensity reasoning.
There is no presumption against the admissibility of
an accused person’s criminal record. To make such a presumption risks
keeping the true picture from the jury:
R. v.
Corbett, 1988
CanLII 80 (SCC), [1988] 1 S.C.R. 670 at paras. 33-35; R. v. N.A.P. (2002), 2002
CanLII 22359 (ON CA), 171 C.C.C. (3d) 70 (Ont.C.A.).
A trial judge does, however, possess the discretion to
exclude all or part of an accused’s prior criminal record. The test is whether permitting the Crown to
ask the applicant if he has been convicted of the criminal offences at issue
would result in an unfair trial.
This question is resolved by measuring the
probative value of the prior convictions to an assessment of the applicant’s
testimonial credibility against the prejudice from propensity reasoning that
may result if the offences are revealed to a properly instructed jury.
R. v. Saroya (1994), 36 C.R. (4th) 253 (Ont.
C.A.), at para. 5: The right to
a fair trial is the context in which the balancing exercise must be effected.
Relevant
factors to be Weighed
In Corbett, the
Supreme Court of Canada set out the following factors that a court should
consider when exercising its discretion:
(a) The nature of the previous
conviction(s). Given that the limited use of the prior record relates to
the assessment of the witness’ credibility, a conviction for perjury or other
crimes of dishonesty may be more telling about a person’s honesty and integrity
than a conviction for possession of narcotics.
(b) The degree of similarity between the prior
conviction and the alleged offence: the more similar the previous convictions
are to the charges before the court, the greater the dangers of propensity
reasoning;
(c) The remoteness or proximity of the prior
offence(s);
(d) Where the accused has attacked the
character/credibility of Crown witnesses, he or she should not be insulated
from his or her own criminal record, lest a distorted view or misleading
picture be left with the jury; and
(e) The effectiveness of a limiting jury
instruction.
Corbett, at paras. 152-158; see also R. v.
Batte (2000), 2000 CanLII 5750 (ON CA), 145
C.C.C. (3d) 498 (Ont.C.A.).
The nature of the defence attack on
the Crown witnesses
If the defence puts forward evidence of a third party’s
propensity to commit the offence (for instance, the criminal record of that
individual put into evidence for that purpose), fairness dictates that similar
evidence the Crown possesses relating to the accused can also be introduced.
R. v.
McManus, 2017 ONCA 188, at paras
89-93; R. v. Parsons
(1993), 84 C.C.C. (3d) 226 (Ont. C.A.).
Limiting Instruction
A jury is presumed to follow the court’s instructions
about the proper use of evidence of prior convictions.
Corbett,
at p. 690.
Thus, a limiting instruction may minimize the danger
of inadmissible propensity reasoning.
Ultimately however, a court must weigh the probative
value of the prior convictions against the risk that a jury may engage in
inadmissible propensity reasoning, even with limiting instructions.
R. v.
Talbot, 2007 ONCA 81 (CanLII) at para. 33.
Corbett Applications on Appeal
Typically, deference is owed to a trial judge’s
determination of a Corbett application,
except where the decision is made on a wrong principle.
Wilson,
at para. 32; R. v. Talbot,
2007 ONCA 81, 217 C.C.C. (3d) 415, at para. 37.
However, no deference is owed where the trial judge
fails to give reasons.
R. v.
McManus, 2017 ONCA 188, at para
85.
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