Assertion: expert's credential | /r/HasProperty | valid
Facets:
Source sentences:
text: The court is now the "gatekeeper" of expert testimony, and a court will not permit an expert to testify unless satisfied that he or she not only has sufficient and valid credentials to pose as an expert in the field in which testimony is sought, but that the expert's methodology was also valid, meaning that he or she developed the opinions through a proper application of his or her specialized knowledge to a given set of facts or assumptions in a manner which is scientifically reliable and has been exposed to peer review.