"Authoritative information" refers to reliable and trustworthy information that comes from a credible source or expert. It is information that can be trusted because it is supported by evidence, expertise, or official status. Full definition
It offers authoritative information on specific child behavior disorders, including their symptoms, diagnoses, and treatment / therapies. (parentcenterhub.org)
If employees know what they're talking about, customers will take notice and see the store as a source of authoritative information about pet cats. (petbusiness.com)
A media section is available for those looking for authoritative information in preparation for stories or articles on geographically separated couples. (longdistancerelationships.net)