Expert opinion evidence must satisfy criteria of R. v. Mohan, 1994 CanLII 80 (SCC) at para. 20, which include: relevance; necessity;
other exclusionary rules; and qualifications of the expert (at para. 72).
Perhaps because there appears to be some lower court confusion over the meaning of Evans and
other exclusionary rule precedents.
Not exact matches
The values underpinning the constitutional and
other legal
exclusionary rules on evidence was to prevent such unconstitutionality by using unlawful and fraudulent private anti-corruptionpreneurs like the CEO of the dummy Tiger Eye or its
other illegal variant.
individuals with disabilities continually encounter various forms of discrimination, including outright intentional exclusion, the discriminatory effects of architectural, transportation, and communication barriers, overprotective
rules and policies, failure to make modifications to existing facilities and practices,
exclusionary qualification standards and criteria, segregation, and relegation to lesser services, programs, activities, benefits, jobs, or
other opportunities;
For this reason, the standard diagnostic approach, he says, is «
exclusionary» — it attempts to
rule out these
other conditions.
But, if your client is effectively «deputized» or becomes a «de facto» agent of the state who is called up to be a member of a posse for the police, for example, by using an agreed symbol such as shining a light with a symbol on it on some clouds, at that point, with respect to that matter, the 4th Amendment
exclusionary rule and Miranda probably do apply to evidence that your client obtains, and exclusion of that kind of evidence could make prosecution much more difficult, unless the prosecution can successfully make an argument that the
other evidence that the illegally obtained evidence leads them to is not «fruit of the poisonous tree» because it would have inevitably been discovered in due course using only the legally obtained evidence.
Exclusionary entrance
rules, advertising bans and
other protectionist regulations to limit competition are a few familiar cases.
In conditions of plenty, hunters and gatherers may not have needed to exclude
others from «their» land, but in conditions of scarcity, some
exclusionary rule is probably inevitable, without leading necessarily to * private * or individual ownership of the land.
Not only will the application of the
exclusionary rule depend on a wide range of considerations,
other rules of evidence may need to be applied (such as the
rules against character evidence and extrinsic evidence on a collateral matter).
Assuming that no
exclusionary rule applies, evidence obtained by a vigilante can potentially be admitted through the testimony of a police officer or
other witness, subject to the
rule against hearsay and the question of reliability.