rapporteur

/ˌræpɔːrˈtɜːr/
noun
  1. A person appointed by an organization or committee to investigate an issue and write a report about it.
    • The UN appointed a special rapporteur to investigate human rights abuses in the region.
    • As the committee's rapporteur, she spent weeks compiling data for the final report.
    • The rapporteur presented her findings to the assembly, summarizing months of research.