Ombudsman

Social Sciences Dictionary
Definition
An independent public official or office that receives and investigates complaints from individuals or groups about maladministration, unfair treatment, or rights infringements by public authorities, issues findings and recommendations, and (where empowered) reports publicly; remedies are typically administrative or conciliatory rather than judicial, unless specific enforcement powers are granted

Ombudsman

Information & Communication Dictionary
Definition
An independent or semi‑independent individual or office, internal or external to a media organization, charged with receiving and investigating reader or viewer complaints about newsroom practice, assessing editorial conduct and transparency, and issuing findings or critiques intended to hold the organization accountable to its own standards or to the public interest.