The District of Columbia Auditor may subpoena witnesses, compel the attendance and testimony of witnesses, and require the production of any records, including books, papers, documents, and any other evidence relating to any matter under investigation by the District of Columbia Auditor.
Subpoena power
D.C. Code § 1-301.171 — under District of Columbia Auditor Subpoena and Oath Authority..
D.C. Code § 1-301.171