credentials and standards vary for assessing the knowledge of out-of-court experts, depending on the area of expertise. even with regards to laying the foundation at trial for the court to accept a witness as an expert, the criteria,although generally standardized between fields of expertise in the eyes of the law, are not inflexible and are subject to some variation. with these caveats in mind, there are several broad areas in which experts are expected to have credentials and qualifications that distinguish them from .
these include: