Canadian Criminal Evidence/Credibility/Prior Consistent Statements

General Principles
Prior consistent statements are presumptively inadmissible.

The prior statement is undesirable for several reasons. They are a form of hearsay and so like all hearsay are considered unreliable. They are also irrelevant and lacks probative value. It is a form of "oath-helping" (inappropriately enhancing the evidence). It is self-serving and self-corroborative without actually adding any value to the evidence. It encourages the inference that a story told consistently over time is more likely to be true. However, “consistency is a quality just as agreeable to lies as to the truth”.

Exceptions
Exceptions to the prohibition against admitting prior consistent statements include:
 * Rebutting allegation of recent fabrication
 * Prior eyewitness identification
 * Recent complaint
 * Show physical or mental state of accused (res gestae)
 * Narrative
 * emotional state of the complainant
 * Statements made on arrest
 * Explanation of accused in possession of illegal goods
 * Admission of video complaints (s.715.1, see Video Statement of Under 18 Year Old)

Where the statement is admitted it must usually be accompanied by a limiting jury instruction.

Recent Fabrication
Recent fabrication exception requires the circumstances to show that the "apparent position of the opposing party is that there has been a prior contrivance" Also, the prior statement was made "before a motivation to fabricate arose".

The "recency" element only requires that the witness made up a false story after the event in consideration.

A "fabrication" can refer to evidence that the witness was influenced by outside sources.

The prior statement is not adduced for the truth of their contents.

Narrative
A prior consistent statement may be admitted as part of the narrative. In a jury trial, the trial judge should give instructions that this narrative evidence can only be used is to "assist them in assessing complainant’s credibility, in certain circumstances, particularly where the complainant is a child, and they are not to use the statements as evidence of the truth of their contents."

Where it is admitted for this purpose in a sexual assault case, it can only be used to help the trier of fact "understand how a complainant’s story was first disclosed"