noun
investigation team; inquiry commission; research group
A group or delegation sent to investigate, survey, or research a specific matter, often in official, academic, or journalistic contexts.
政府は事故の原因を調べるため調査団を派遣した。
The government dispatched an investigation team to look into the cause of the accident.
その調査団は現地で一週間の調査を行った。
The research group conducted a one-week survey on site.
Compound of 調査 (investigation) + 団 (group, body).